Here you'll find all the custom content that I use and therefore endorse for use in one's game. I have certain personal preferences, like I'm not a fan of animal skins or ears, I'm big on makeup as opposed to accessories or pre-made skins where possible, and I prefer making animal sims that are plausible in a game (read: no crazy super sliders, not a lot of clipping accessories, like wings, etc.).
I realize my tastes are not for everyone, but others have made similar cc lists that are more comprehensive and unbiased, if that's more your thing.
Stuff that can be used with versatility, or stuff that doesn't fit in the major categories
Cat sim centric content, but all content ideal for "carnivorous" animal sim types
Deer sim centric content, but all content ideal for "herbivorous" animal sim types