It depends on wha you define as viable. If you want to see a bunch of videos about anything and everything advertiser friendly, then there are no options. If you want to see videos about advertiser non-friendly topics, then you’re in luck, because there are quite a few places hosting videos like that. If you don’t really care about the quantity, then odysee is a pretty good option IMO. If that’s not puratian enough for you, consider checking out peertube. The video selection is pretty small, but as long as you like what they have, then even peertube can be a viable option for you. Probably not that viable for most people, but it can be for some.

As far as I’m concerned, odysee is pretty good, whereas peertube is far too limited at the moment. Youtube has been taking many small steps towards becoming as bad as TV, and when they finally cross the line, I’m ready to switch. I won’t have that much to watch, but I guess that sort of lifestyle will serve me well in the long run.