Currently odysee is being used here: https://lemmy.ml/c/vtubers
It’s just difficult to find a decent instance that will not auto-delete every video just because it’s technically under copyright.
A free software to take back control of your videos
Peertube is an open, federated alternative to Youtube without advertising or tracking. On this site, you can find a good Peertube instance, with good rules, good moderation and most importantly a friendly community.