I was impressed by the Janitor.ai
It may not be perfect or it doesn't have that many specific bots., but I found it very good. Perhaps the only thing that's tiring is the very long messages, but it reminded me a lot of the old character.ai.
Not to mention that, comparing the dialogues, they are much more creative and expressive; only some bots are a bit too robotic. But based on my experience, It's been really great so far.