How to install
ModManger - Just drag 'n drop .pak into BG3 mod manager and add to your load order as always
Dont forget to click "save", "refresh" and "export" buttons in Mod Manager. Enjoy.
Guide link
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Attention
Check the:
1) Description of the mod
2) Installation requirements 
3) It's updates (mod and  requirements)
4) Mod Order for the mods
5) Check if your mods don't conflict - Troubleshooting link

Mod Order for multiple mods link 
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Collections
if you use Vortex you could download collections by Heads pack or All at once