Overgrowth MC is a semi vanilla SMP that feels like an RPG. There are tons of new things to find like custom items weapons and armor. You can get stronger over time and use magic and spells to help you out.
The world is full of danger with custom mobs and dungeons. You can fight tough creatures and take on dungeon bosses if you want a big challenge.
If you want to chill you can build a town and live more peaceful. If you want trouble there is PvP too with duels and even wars.
It also has Towny classes races skills like tree feller and fast mining brewery chest shops custom textures and crossplay. It supports Java and Bedrock and it runs on versions 1.21.7 to 1.21.11 plus recent Bedrock updates.
Overgrowth SMP RPG Magic Towns Wars

GG.MINEWIND.NET New Server IPPosalon Worldbuilding Lore And Politics Server

Posalon is a worldbuilding server where what you do with other players becomes part of the story. People help shape the history together and it is not just one person running the whole lore.
You can get into nation politics and even try to start your own nation. There is vehicle building with movecraft so players can design planes tanks and ships and then test them in real battles.
If you want chill vibes you can use BreweryX and be a bartender. You can also make up a new religion and try to spread it. The point is you can pick an identity and leave a mark on the world over time.
GG.MINEWIND.NET New Server IPKronos Geopolitical SMP Nation Rush

I found a new SMP that is about geopolitics and nations. It is starting soon and people are trying to join early so they can claim land they want.
There are already over 40 members and it sounds like it could get way bigger fast. Nation creation applications open within a week so the early joiners get the best shot at planning territories.
The server uses mods like Brewery and Immersive Aircraft to make things more interesting. The map is 20000 by 20000 and they said it will expand as more players show up.
GG.MINEWIND.NET New Server IP
