Probably stable diffusion. You can self host either stable diffusion or easy diffusion. Easy diffusion runs on stable diffusion but its easier to deal with, the only caveat is that it isn't compatible with lycoris models.
I'm all for equality and diversity. There were never many if any girls in café culture, land parties, or gaming in general growing up in the 90's-00's. The friends I hung out with would have loved if that wasn't true, but it was what it was. I'm sure it wasn't that way everywhere. I'm just one life experience, but I spent a lot of time in internet cafés and it was always a sausage fest.
I don't know why you're getting downvoted. I barely ever saw a woman when I was a regular at the local internet cafés, and everyone I know who was doing that has the same experience