This modpack is designed to enhance Minecraft, or add things that could be in Vanilla (or should be).
I've put together a list of mods that I think work well together. I've added the Discord Integration mod because I use this on my personal server, note that this will not work in single player. If you don't want to run this, then just remove this from the profile.
Discord Integration Wiki for Quick Setup: https://github.com/ErdbeerbaerLP/Discord-Chat-Integration/wiki/Quick-Setup
I run these mods in 1.16.4 and Forge 35.1.36:
Just Enough Items 1.16.4-7.6.1.71 https://www.curseforge.com/minecraft/mc-mods/jei
Quark r2.4-303 https://www.curseforge.com/minecraft/mc-mods/quark
QuarkOddities-1.16.3 https://www.curseforge.com/minecraft/mc-mods/quark-oddities
WorldEdit 1.16.3-7.2.1 https://www.curseforge.com/minecraft/mc-mods/worldedit/
DiscordIntegration-2.1.0-1.16 https://www.curseforge.com/minecraft/mc-mods/dcintegration
BYG 1.1.8 https://www.curseforge.com/minecraft/mc-mods/oh-the-biomes-youll-go
Mekanism-1.16.3-10.0.19.446 https://www.curseforge.com/minecraft/mc-mods/mekanism
MekanismAdditions-1.16.3-10.0.19.446 https://www.curseforge.com/minecraft/mc-mods/mekanism-additions
MekanismGenerators-1.16.4-10.0.19.446 https://www.curseforge.com/minecraft/mc-mods/mekanism-generators
MekanismTools-1.16.4-10.0.19.446 https://www.curseforge.com/minecraft/mc-mods/mekanism-tools
TrashSlot_1.16.3-12.2.1 https://www.curseforge.com/minecraft/mc-mods/trashslot
MutantBeasts-1.16.4-1.1.3 https://www.curseforge.com/minecraft/mc-mods/mutant-beasts
PandorasCreatures-1.16.3-2.0.1 https://www.curseforge.com/minecraft/mc-mods/pandoras-creatures
Structurize-0.13.100-RELEASE-universal https://www.curseforge.com/minecraft/mc-mods/structurize
RandomPatches 2.3.0 https://www.curseforge.com/minecraft/mc-mods/randompatches
The Undergarden 0.4.5 https://www.curseforge.com/minecraft/mc-mods/the-undergarden
Dependencies:
AutoRegLib 1.6-47 https://www.curseforge.com/minecraft/mc-mods/autoreglib
Chocolate Fix 1.16.4-1.3.0 https://www.curseforge.com/minecraft/mc-mods/chocolate-fix