i really dont know how to find it in the open but here is some nsfw games from my private list
https://nadianova.itch.io/slime-feet
https://phantomzz-7.itch.io/honey-kingdom
https://anarchothaumaturgist.itch.io/course-of-temptation
https://venusnoiregames.itch.io/seeds-of-chaos
https://komisari.itch.io/heros-harem-guild
https://victorseven.itch.io/wca
https://majalis.itch.io/tales-of-androgyny
https://nranchs.itch.io/rogschard-lords-and-loyalty
Hope that helps!