I am aware of Sepia search however, when I first used Sepia search I use to be able to find all sorts of content. But now a days I can’t find anything on that. But only some of the things. Is there a more reliable tool to search across Peertube instances for videos?
I’d suggest taking a look at !peertube@lemmy.wtf and the pinned post about channels to watch. Sepia search should be finding content from among about a 1000 instances. If not working, you can try the search at PeerTube.wtf. It uses the same search index as Sepia.