There are multiple reddit clones, I think the biggest one is Lemmy.
Did you really think there was nothing else? Services like reddit are big because of their network effects, not because they have so special sauce that no one has been able to replicate.
Anything federated the isn't a Reddit replacement, too much friction and users don't want to join multiple instances just to see all comments on a single topic.
Did you really think there was nothing else? Services like reddit are big because of their network effects, not because they have so special sauce that no one has been able to replicate.