When people have this issue I always recommend NYC. I know it's not the easiest city to live in, even with a tech salary, but at least the gender imbalance is not a problem at all.
Sure, I should have done that before, actually it's a bit sad that I haven't done that when I was younger. At this point I have an asthma because of air pollution from living in cities, so I can't go there anymore, but I'm independent now.