Umamusumers and Rezero larpers is a pretty loose SMP where people just do their thing, meet up, and mess around together. It's a vanilla-style crossplay server, so Bedrock and Java players can both jump in and play without it being overly complicated.
There's an economy running too, so you can still trade, earn, and build up your stuff while keeping the server's no-rules, anything-goes energy. PvP is part of the mix, and the whole place leans more into freeform chaos than strict survival.
Just keep it on the downlow and don't expect a heavily moderated experience. If you want a rough, social, no-nonsense server with a bit of economy and a lot of player drama, this is the kind of place it's aiming for.