I found a server called Aethron and it is a Java 1.21.11 Towny survival server. It is still pretty new and it has been up for about a month with around 15 players so far.
The world feels more wild because it runs datapacks like Terralith Incendium and Nullscape plus more. You can explore and build towns and help shape how the place feels while it is still growing.
People are active during the day but sometimes it gets quiet. It seems best for players who want to be part of the foundation and not just lost in a huge crowd.
Fresh Towny World Needs Founders
GG.MINEWIND.NET New Server IPChill Survival SMP With Claims Economy
I found a new survival SMP that just opened a couple days ago and it already has a small but active and friendly community. It usually has around 8 to 12 players on during the afternoon.
There are no ranks or donations and the quality of life stuff is just there. Things like claim flight and back and sit are included.
It has a player run economy with a custom shop plots world. Your builds are protected with claims and there is a no grief rule so it feels safe to build.GG.MINEWIND.NET New Server IP