The best way to find cc from multiple creators on tumblr is to follow accounts that mainly reblog ts4 cc. A lot of reblog accounts post stuff from other rebloggers, so look at who they're reblogging and follow them, too. The only downside to this is that everyone is hosting their creations on different sites, so some will be free and safe (like simsfileshare) and some will be paid or will link to ad sites. Sometimes you can tell where a link is going before clicking by hovering over it and looking at the bottom of your screen on a PC.
I have a reblog account that emphasizes free downloads (not all are free, but most) at
https://www.tumblr.com/blog/view/queenofmyshuno-reblog.
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