I found Taerel Network and it feels like a dark fantasy survival place with a whole story behind it. The server is built around strange portal worlds that feel alien and new. It starts with a small settlement and a lake and a weird tree and then the darkness outside feels dangerous.
The main thing here is a modded SMP experience using their own custom modpacks. Each server can have different modded biomes so the world feels unfamiliar and kind of spooky. They also say the map will not reset so it is meant for long term survival and building.
The owner is active and friendly and the staff is active too. The server is whitelisted so you have to ask to get in before you can play.