YouTube is the only platform that I don’t think I’ll be able to quit any time soon. Hosting video on that kind of scale requires insane amounts of capitol, and P2P isn’t reliable enough, and I say this as someone who has streamed torrents before and has tried out PeerTube.
Also even if there was an alternative, having an alternative for creator monitization is even more difficult. LBRY and D-Tube tried to do it with cryptocurrency, but both of those projects seem to have fizzled out (and I think one is flooded with fascists nowadays).