September is the perfect month for streaming! Summer movies are winding down, fall TV isn’t yet in full swing, and streaming sites are picking up the slack with new seasons, exciting launches, and international shows. The weather is starting to cool down, weekends are for hanging out in blankets, and with no fresh air distractions, you are primed for the ultimate couch binge-watch.
If you’ve reached infinity scrolling on Netflix, Hulu, Apple TV+, Prime Video, or HBO Max and have tried to figure out anything that’s remotely worth your time, this life-changing guide was made just for you. Whether you are looking for an intense newsroom drama, an all-out comedy, a genre-defining supernatural hit, or a gripping political thriller, check out the ultimate guide to the best series to watch on OTT in the USA this September.
The Best Series to Watch on OTT in the USA
1. The Paper
Release Date: September 4, 2025 (Peacock)
Genre: Mockumentary, Sitcom
Cast: Domhnall Gleeson, Sabrina Impacciatore, Chelsea Frei
If you’re nostalgic for The Office but also crave fresh comedy, The Paper is your must-watch this fall. Premiering September 4, 2025, on Peacock, this mockumentary sitcom takes the beloved Dunder Mifflin narrative into a newspaper setting—preserving the cringe humor, quirky characters, and subtle satire that made its predecessor legendary.
If you’re seeking the best series to watch on OTT in the USA, The Paper is topping many must-watch lists this September.
This isn’t a reboot; it’s a fresh newsroom with the same style—dry, cringe-filled, and deeply observant.
Take a look at the official trailer!
2. Task
Release Date: September 7, 2025 (HBO)
Genre: Crime Drama / Psychological Thriller
Cast: Mark Ruffalo, Tom Pelphrey, Emilia Jones
If you’re looking for a gritty, emotionally driven crime drama this fall, Task should be on your radar. Created by Mare of Easttown maestro Brad Ingelsby, the show brings Mark Ruffalo back to HBO in one of his most compelling TV roles yet. Plus, its thoughtful portrayal of moral conflict, working-class struggle, and fractured faith makes it a standout pick for the best series to watch on OTT in the USA this month.
The suspect? Robbie (Tom Pelphrey), a seemingly ordinary garbage collector driven by desperation to protect his family—portrayed with harrowing nuance.
This isn’t just another thriller. It’s a psychological portrait of two broken men on a collision path, set against an authentic, somber regional backdrop
Take a look at the official trailer!
3. Only Murders in the Building
Release Date: Ongoing Episodes (Hulu/Disney+)
Genre: Comedy/Mystery
Cast: Martin, Martin Short, Selena Gomez, Meryl Streep (Season 4)
The cherished trio of amateur podcasters is back with a fresh case, this time caught up in rivalries on Broadway and hidden secrets behind the scenes. As always, expect plenty of laughs, unexpected twists, and touching moments.
The show’s charming mystery atmosphere aligns wonderfully with crisp autumn evenings. It offers humor, suspense, and just the right amount of quirky fun to keep you hooked without becoming overwhelming.
With Meryl Streep joining the already impressive cast, Season 4 is being celebrated as the best so far. It solidifies its status as one of the best series to watch on OTT in the USA.
Take a look at the official trailer!
4. The Girlfriend
Release Date: September 10, 2025 (Prime Video)
Genre: Psychological Thriller
Cast: Robin Wright, Olivia Cooke
The Girlfriend centers around Laura, a perfect, high-powered art dealer from London, whose life goes off the rails when her son Daniel brings home his new girlfriend, Cherry. What begins as awkward politeness ultimately evolves into mistrust—Cherry, with a perceived working-class background, may be seeking to ingratiate herself into the family’s upper-class world.
Based on Michelle Frances’ novel, this six-episode mystery drops on September 10, 2025, and promises tense mind games, class confrontation, and unreliable narrators. If you’re hunting for the best series to watch on OTT in the USA, this one deserves a spot on your watchlist.
Take a look at the official trailer!
5. Black Rabbit
Release Date: Streaming Now (Netflix)
Genre: Drama
Cast: Jude Law, Taron Egerton
After their father passes away, two distant brothers inherit a struggling nightclub in New York. As they attempt to restore it to its former glory, they unearth deep-rooted family secrets and dangerous financial obligations linked to the criminal underbelly of the city.
September is the ideal time for intricate dramas that delve into relationships and identity, and Black Rabbit fits this description perfectly. The show combines grit with emotional depth, making it an excellent choice for binge-watching over the weekend.
Featuring powerful performances from Jude Law and Taron Egerton and co-produced by Edward Norton, “Black Rabbit” stands out as one of the best series to watch on OTT in the USA this fall.
Take a look at the official trailer!
6. Slow Horses
Release Date: Season 5, September 20, 2025 (Apple TV+)
Genre: Spy Thriller
Cast: Gary Oldman, Jack Lowden, Kristin Scott Thomas
The unconventional agents of MI5’s “Slough House” return for another season filled with chaotic espionage. Viewers can anticipate deadpan comedy, clever writing, and international intrigue.
Autumn marks the arrival of spy thrillers, and “Slow Horses” consistently shines in this genre. It strikes a balance between intelligence and accessibility, making it one of the best series to watch in the USA for those who enjoy clever thrillers.
Gary Oldman has solidified his place as an iconic figure in his portrayal of the jaded Jackson Lamb. Each new season gains momentum, with critics praising Season 4 as the finest season yet.
Take a look at the official trailer!
7. The Savant
Release Date: September 15, 2025 (Hulu)
Genre: Crime Thriller
Cast: Jessica Chastain, Riz Ahmed
A gifted, tortured profiler, known only as “The Savant,” helps law enforcement solve impossible cases by seeing things most people can’t see in the details of the world around them. Each episode expertly mixes the mystery of a crime combined with the psychological drama of a disturbed criminal mind.
True-crime-inspired thrillers are well worth watching every fall, and The Savant will hook you in, all while offering increasingly chilling insights into how the mind of a criminal operates.
Jessica Chastain gives a haunting performance, and paired with Riz Ahmed’s balanced intensity, it is easily among the best series to watch on OTT in the USA, especially for a fan of dark, brooding, intellectual storytelling.
Take a look at the official trailer!
8. Chad Powers
Release Date: September 18, 2025 (HBO Max, Hulu)
Genre: Sports Comedy/Drama
Cast: Glen Powell, Eli Manning (cameo), Regina Hall
Based on Eli Manning’s viral “Chad Powers” disguise, this softly fictionalized comedy follows an undercover quarterback on a mission to take back his career.
Fall is the best time for sports stories, and this series is an incredible combination of football culture and quick, sharp comedy.
A unique combination of sports, satire, and heart. Glen Powell gives us charisma in his role, but Manning elevates the series with his cameo that feels authentic. A new entrant in the Best Series to Watch on OTT in the USA category.
Take a look at the official trailer!
9. Wednesday: Season 2, Part 2
Release Date: September 27, 2025 (Netflix)
Genre: Supernatural/Mystery
Cast: Jenna Ortega, Catherine Zeta-Jones, Luis Guzmán
Wednesday Addams is back with more dark comedy, supernatural mysteries, and gothic excess at Nevermore Academy.
The timing is great—October and Halloween season are fast approaching, and I think Wednesday’s macabre, stylish series is one of the more binge-worthy shows that will be available this month.
Jenna Ortega’s performance was absolutely perfect and made Wednesday a cultural phenomenon. I easily feel she was one of the best series to watch on OTT in the USA for young adults and supernatural themes.
Take a look at the official trailer!
Each of these adds depth and variety to an already stacked streaming lineup. No matter your taste, there’s a reason these titles rank as the best series to watch on OTT in the USA right now.
Why These Are the Best Series to Watch on OTT in the USA
This September’s releases stand out not just because of big names, but because they hit every kind of mood:
- Thrillers like The Paper and The Savant scratch the suspense itch.
- Comedies like Only Murders and Chad Powers balance the drama with humor.
- Prestige entries like Black Rabbit and Slow Horses bring depth and rewatch value.
- Supernatural fans get Wednesday, while political junkies get American Conspiracy.
So there you have it—a comprehensive list of the Best Series to Watch on OTT in the USA for September 2025. With everything from star-driven dramas to addictive mysteries, this month is tailor-made for binge-watchers.
Grab your snacks, set your reminders, and plan your evenings wisely—because September is packed with streaming gold. Which series are you diving into first? Share your picks with friends, and let your watchlist set the tone for an unforgettable fall season.
