If you like to use different modifications, then you have probably heard about the line of add-ons from Horizon. In order for these add-ons to work actively and not give you any trouble, it is enough to use the Titanium mod for Minecraft.
Titanium Mod for Minecraft 1.16.3/1.16.2/1.16
This add-on is a library of files that serve as the basis for a pleasant pastime.
They are necessary for the normal operation of all add-ons in this line, so this set of files is recommended for mandatory use. They work automatically, so you only need one installation and nothing more.
Download Link: titanium-1.16.3-3.1.0