Algorithmic stablecoins are doomed to fail and not particularly interesting. They're all based on the notion that you can create something out of nothing. It's the cryptocurrency equivalent of a perpetual motion machine. Usually there's a floater coin that's minted and burned based on the supply and demand of the stable coin. But again, nothing answers the question why should this (floater) token be worth anything? If the token goes to 0, it all falls apart, or the more likely case that the price drops enough the there is no amount you can mint to stabilize the stable coin. SBF said as much [0].
DAOs are too complicated and rife for abuse and a constant target for attacks, so I'm not optimistic on.
I think what SBF is doing is interesting as he's buying up failing businesses for the users and trust. There's definitely going to be a consolidation going on and I think its for the best.
[0] https://www.bloomberg.com/news/articles/2022-04-25/sam-bankm...