Here are the top 3 alternatives to PeerTube, focusing on other decentralized, open-source, or federated video platforms:

1. Odysee

Odysee is currently the most popular direct competitor to PeerTube in the decentralized space. While PeerTube is built on ActivityPub (federated), Odysee is built on the LBRY protocol (a blockchain-based decentralized network).

• Why its a top alternative: It offers a user experience very similar to YouTube (with algorithms and comments) but ensures that content is actually owned by the creators, not a central entity. It has a much larger user base than most PeerTube instances.
• Best For: Creators looking for monetization (via LBRY Credits) and a platform that feels modern and fast.

2. DTube

DTube is another blockchain-based alternative, originally built on the Steem blockchain (now moved to the Hive blockchain). It markets itself as a "crypto-powered" YouTube alternative.

• Why its a top alternative: It replicates the look and feel of YouTube almost perfectly. Users can vote on videos and earn cryptocurrency, and there are no ads. Because it runs on the blockchain, it is virtually uncensorable.
• Best For: Crypto-savvy users and creators who want to earn rewards for their content and engagement.

3. Owncast

If you are looking for an alternative to the software that PeerTube provides (allowing you to host your own video platform), but specifically for live streaming, Owncast is the best choice.

• Why its a top alternative: It is a single binary you install on a server. It integrates with existing streaming software like OBS. It gives you a standalone website and chat for your live streams without the complexity of the fediverse or blockchain if you just want to go live.
• Best For: Live streamers who want complete ownership of their stream and audience without relying on Twitch or YouTube.

Honorable Mention: BitChute (PeerTube alternative focused on political commentary, though it relies on peer-to-peer technology which can sometimes make viewing slower).