Durian SMP is a brand new SMP that is starting today. It is for Minecraft 1.21.11 and it is meant to be small but friendly and growing.
The server is almost completely vanilla. It also has optional Simple Voice Chat and some server side performance mods.
If you want a new place to play survival with a chill community this one is trying to get going right now.
Durian SMP Launching Tonight Vanilla Vibes
GG.MINEWIND.NET New Server IPFresh Vanilla Java SMP Recruiting Players
I found a super new Java SMP that is basically vanilla and only a few days old.
It has no major mods or plugins so it feels simple and normal survival.
Voice chat is encouraged but it is not required. There are around 15 people in the Discord and you can get whitelisted by dropping your ign after you join.GG.MINEWIND.NET New Server IP