We wouldn't leave you to track down the best mods all on your own, though. They may not play nice with the latest official additions and updates from EA, so be sure to do some double-checking before you throw everything together. It can be some work to figure out which mods will work nicely together, and which will make your game come down with a digital cold.
Elsewhere, you'll find that some of the bigger Sims 4 modders-including LittleMsSam and KawaiiStacie-maintain their own dedicated websites for their catalogue of modded additions. A more recent option to try is Sims 4's official modding support through CurseForge, available at the Official Mod Hub for Sims 4. Whether the mod is a small tweak or massive rework, you'll find it there. Almost a decade after release, brand new Sims 4 mods release every day on ModTheSims-the longtime standard platform for Sims 4 for modders.
