Here's a guide to all the different ways you can discover accounts to follow and videos to watch on PeerTube:
➡️ https://fedi.tips/how-to-search-peertube
The different methods have pros and cons, I've tried to mention these in each section.
By the way, you don't need a PeerTube account! You can follow and interact with PeerTube from within Mastodon, the videos will show up in your timeline. You only need a PeerTube account if you intend to publish videos or create playlists.
