Often wonder what program people use for this. I've seen a few that basically crank out garbage or look identical but take the dominant colors of the sample and apply it to the other image.
Most of the time, it's StableDiffusion. How to install and run it: https://youtu.be/6MeJKnbv1ts (you need a decent graphic card even for small pic generation) Then you look for SFW or NSFW anime models, or create them. I'd say the best way to find them and ask people are the AI Degen threads on 4chan https://boards.4chan.org/b/catalog#s=degen
Base +37, Kaguy4 +6, biosteel +12, Feii -6, GearZeroSky +20, Waitugreat -30, guinea_dolores +6, 772288z +5, White Joker -27