I found a Minecraft server called MinecraftOffline and it runs on version 1.21.11.
It is based in Finland so it should feel smooth for players in Europe. The world is permanent so the map is meant to stick around.
The server also uses a custom plugin suite so it is not just plain default stuff. The hardware looks reasonable too with an i7-8700 64GB RAM two 6TB enterprise drives and a 1 Gbit network.






