I found a chill modded Minecraft server called The Ferox Concordium and it is run by a small group of friends. It feels welcoming and they are trying to grow the community.
The server is always online and people are actively playing. It is running the Divine Journey 2 modpack on Forge for Minecraft 1.12.2.
Staff and owners are around a lot and they help when you have questions or need help in game. Joining their Discord is required so they can verify players and keep things safe.
It is 16 plus only and they want everyone to be respectful.
Chill Divine Journey 2 Modded Server
GG.MINEWIND.NET New Server IPExpert Modpack Server With Proximity Chat
I found a modded server that is running the Echoes of Nostalgia Expert modpack. It is hosted by two players and it is open for anyone to join for free.
The main idea is expert style progression so it is meant to be more challenging. There is also optional proximity chat if you want to talk to people while you play.
It sounds like they want a friendly group to hang out and play together so if you like modpacks and want more players around this one fits that vibe.GG.MINEWIND.NET New Server IP