I’ve bundled all the Feed the Beast (FTB) mods together because they’re great as a package and tend to rely on one another for full functionality. They’re what I currently use for a modded Minecraft server! My main complaint, however, is the lack of accurate documentation for some mods. Just something to keep in mind for consideration.
FTB Backups
Game Versions: 1.12, 1.14, 1.15, 1.16
Provides a configurable backup system for servers and creates them only when players are online to save space from clutter!
FTB Quests
Game Versions: 1.12, 1.15, 1.16
For those that want a server with quests, this is a great mod to have. It makes it easy to create custom quests for players.
FTB Chunks
Game Versions: 1.15, 1.16
This mod comes with its own world map and minimap. More importantly, it allows for players to claim chunks. Only those the player allies with will be able to interact or affect blocks in the claimed area. I highly recommend using in conjunction with FTB Teams for full functionality.
FTB Teams
Game Versions: 1.15, 1.16
This mod adds the ability for teams to be made. On its own, it's not very impressive, but matched with FTB Chunks and FTB Quests, servers run smoothly.
FTB Ultimine
Game Versions: 1.12, 1.15, 1.16
This is a great VeinMeiner alternative for newer game versions. With a configurable key, players can harvest multiple blocks at once. You can also configure a whitelist of blocks for the server!
FTB Essentials
Game Version: 1.16
This mod adds utility commands that are essential to running and maintaining a server. It allows players to teleport to one another, change nicknames, set homes, and more!
FTB Ranks
Game Versions: 1.15, 1.16
This is essential if you want to enable permissions on a server. Completely configurable, you can set ranks for new players, moderators, and any other type that give specific access to mod commands.