Sure, just go up a level to the "Mods" section here on itch. The other big ones are Redle's, Leonais's, and the Randomportrait mod is very popular. Not all of them play well together though (I think Randomportraits generally does though). BUT, if you really want to get all the content possible... you can join the darkside and start modding it yourself. S4P is VERY mod friendly.