Eventide SMP is a new Minecraft server that just released and it is cross platform. It runs a semi vanilla survival style with only a few quality of life plugins so it still feels close to normal Minecraft.
The server is whitelisted so people have to apply to join. It is trying to build a mature and respectful community that sticks around for a long term world and actually cares about the other players.
There are active events to join in and the economy is player driven kind of like Hermitcraft. The whole vibe is built on trust so you are expected to play fair and be cool.
Eventide SMP Whitelist Survival Server
GG.MINEWIND.NET New Server IPMinecraftOffline 1.21.11 Permanent Map Server
I found a server called MinecraftOffline that runs on version 1.21.11 and it is made for people who want a world that sticks around.
The map is permanent so it is not getting wiped all the time. It also uses a custom plugin suite so it is not just plain vanilla.
It is based in Finland so it should feel good for players in Europe. The server also says it runs on reasonable hardware and that helps keep things stable.GG.MINEWIND.NET New Server IP