MistyMC is a long term 100 percent vanilla SMP that started about 6 months ago. It is a no reset survival world so your builds can stick around.
It supports both Java and Bedrock on the most recent versions. The community is pretty tight and active and it sounds like a good place to make friends.
You can team up with buddies and form a nation or just join to chill. There is also a Bluemap so people can look at the world map.
