I have been toying with the idea of various types of videos, including intermediate level painting videos, video game retrospectives, and some personal worldbuilding project videos. I don’t want to feed the YouTube machine, but also don’t want unsustainable expenses. I’ve looked at a few of the various not-YouTube alternatives but it is difficult for me to get a good read on that landscape.
I think PeerTube is ideal if you don’t want to use YouTube. The first selling point is of course Fediverse integration; the second is that it’s peer to peer, so that hosting costs don’t increase much if many people are watching at the same time.
The hardest part is to find a suitable instance (assuming you won’t self host), but it should be doable.