Dropped Lilith's Throne after acknowledging it's an unfixable mess so I'll be back to help playtest very soon (hopefully).This. Tried the lezdom suggestion thread? It has some funstuff, though it's mostly 3D. Some of them are females only, but it's still super rare, so Crazy struck a vein here.
Some slave trainers are pretty deep on the dialogue too and not just "click button, break girl". To this day the early Custom Slave series still is my favorite, because of how strong-willed some can be, because it can backfire pretty badly (for femdom+femsub lovers) and because it's entirely moddable. Affection is a plus in STGs too, so they're not just a "slave harem" or "bitches gone wild".