Runeforge is a Survival RPG server built around Skills, Dungeons, Quests, and exploring a world full of custom structures and world bosses. It mixes classic survival with more progression-focused gameplay, so there is always something new to work toward while you build, explore, and level up.
You can train a bunch of different RPG skills, take on multiple questlines, run dungeons, and earn custom items as you progress toward stronger gear. There are also custom boss and mob models, 3D backpacks and weapons, land claims, and an afk XP zone for when you want a slower grind.
If you like a bit of action on the side, Runeforge also has duels so you can practice your PvP skills without losing the RPG feel. It supports 1.21.8 Java and Bedrock through Geyser, so friends on both versions can join in.