Vlemmy was a good one, although you are almost two weeks late with your question since it fell down :( (Although it was going to defederate with an instance the day before closing due to not wanting to host illegal content, for obvious reason)

I would love for another one to sprung out, I myself am quite trigger happy with blocking people and communities (even instances through my app) so I would always be happier being the one shaping the content instead of another person doing it for me, regardless of if we would block the same instances at least I would know what I have blocked.

I would probably never browse the local feed on an instance that intentionally never defederates though, the potential to jost a plethora of unsavory people is too high (although that hadn't really happened with vlemmy, that instance was insanely good at that)