Achievement Enabler, the Mod Fixer, and the Native Mod Loader are all also helpful, though I’m not entirely sure they are needed for the UI mods, though it doesn’t hurt to have them. The Achievement Enabler allows you to still earn achievements with mods if that wasn’t obvious, and the native mod loader allows the game to load the achievement enabler.
Beyond that, I’d recommend just looking around on Nexus. There are thousands to look through, ranging from improving classes and races to adding spells to straight up making you a god.
I’m still playing the hell outta Baldur’s Gate 3. I’ve played through so many times, have multiple multiplayer campaigns going on, and I’m just having a lot of fun with mods.