SimpleSimmer makes gorgeous Maxis-match content for female sims:
Sims 4 Maxis-match content is usually vibrant, colourful, and a bit cartoony, much like the art direction the Sims 4 has taken.
I have to mention Neia's career mods!
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Many CC creators post their downloads on sites like Adfly.
Not yet, but I want to try some!
Sims 1 Skins.
It's definitely worth checking out all of icemunmun's mods, as she does lots of nice food-related ones.
Two simultaneous animations are deviated of time in Sims3.
The No Culling Mod again, by the talented Gspot orgasm shots does exactly what it says, and it's essential for anyone who wants to keep their family trees intact and play with all the Sims they've created or befriended.
These are all sites that I use regularly, so I can vouch for their content.