Here are the top 3 alternatives to Tubi, focusing on sites with the largest content libraries and the best user experience:

1. Pluto TV Owned by Paramount, this is arguably Tubi is biggest competitor.

• Why it is a top alternative: It offers a massive library of on-demand movies and shows, but its main draw is its "Live TV" guide. It mimics the experience of cable TV with hundreds of dedicated channels for news, sports, reality TV, and specific genres.
• Content: Includes a lot of content from MTV, Comedy Central, Nickelodeon, and Paramount Pictures.

2. The Roku Channel Originally made for Roku devices, it is now available on the web and as a mobile app, making it a strong alternative for desktop users.

• Why it is a top alternative: It has a very clean interface and a robust library. It also offers Roku Originalsexclusive content you can not find on other free services. It features a good mix of classic films, recent hits, and licensed library content from major studios.
• Feature: It allows you to subscribe to premium channels (like HBO or Showtime) directly through their interface if you want to expand your options, but the free section remains substantial.

3. Freevee Formerly known as IMDb TV, this service is owned by Amazon.

• Why it is a top alternative: Because it is connected to Amazon, it has a surprisingly high-quality library of content. It features many mainstream movies and popular TV shows that have recently left other streaming services.
• Content: It is particularly strong for original programming (like Jury Duty and Bosch: Legacy) and current TV series. It also integrates well if you already use Prime Video, but the website stands alone.