Another one I hope to see take off is Odysee.com. They're a direct competitor to YouTube.
I haven't found much super interesting at the moment and their technology still have a ways to go to catch up to YT (still need an IOS app, playlist functionality, monetization, etc).
Apparently content creators can link their YT to Odysee with one or two clicks, and it will copy all their existing and new YT content over automatically. Content creators could use that as a back up in case YouTube cancels them. Hopefully this will encourage creators to diversify.