Well xhamster has a "female choice" section. I'm not exactly sure how they choose content for that but there's a mix of stuff in there.

Of course the one that I always see getting answered to this question is the http://www.pornmoviesforwomen.com/femaleporndirectors.htm website that maintains a list of porn directed by and for women :) again a wide range of subject matter so you might have to dig around.