Before coming out I was "The girl with big feet". I am a 44 EU I believe, though sometimes I need to stretch all the way up to a 46. I think I'm US sizing that's an 11 or 12? Either way, I found Clarks in Britain good (Whenever I was there I would stock up) and certain other brands like Converse which are gender neutral that offer non-sneaker shoes. Also, there's Payless in the Americas which was always a haven for me since I have problems with my feet. They're your best bet, really.