This is a simple pack created that has a few of my favorite mods for multiplayer. These mods are all server side, and most servers should allow them. Make sure to check you server's rules before using them!
Fabric API
Sodium
Continuity
Fullbright
Xaero's World Map
Simple Voice Chat (Requires the mod to be installed server side to work, but I included it as many servers do have it already.)
Fabric Language Kotlin
Bare Bones
Bare Bones - Connected Glass
Bare Bones - Better Leaves
Outlined Ores
None of these texture packs are enabled by default, you can enable them if you want to.