A more recent option to take a look at is Sims 4's official modding support through CurseForge, available at the Official Mod Hub for Sims 4. Whether your mod of choice is just a small tweak or a total rework, you'll find it there.
Nearly a decade after release, countless new Sims 4 mods drop every day on ModTheSims- the longtime platform standard for browsing the Sims 4 mod selection.