FWIW my wife is small and has tiny hands but loves her Beretta 92 inox. She is almost a better shot than me with it(dont tell her I said so).
Either way she should probably try out different ones until she finds what is most comfortable to her. My wife wanted small and picked up a Shield 9. Then she shot it and hated the recoil. It's now a bug for me. Unfortunately she chose the Beretta next. Otherwise I may have had many more in my collection while she "tried" them out.