Writers always want to know what editors are buying, and I'm happy to report that editors seem to be buying again, although very slowly.
I want to underline that fact - they're buying but at a slower pace, and, often, for less than you might have gotten a year ago.
OK, so what's selling is paranormal romance and young adult fiction. And, as I've said countless times, you can never have too many vampire novels, with zombies following close behind. And don't forget to set those paranormal YA romances during the vampire/zombie apocalypse (seriously).
However, it's become increasingly difficult to sell any genre fiction from a male protagonist's perspective, unless he's really hot. But even if he's a really hot teen vampire, it's better to tell the story from a female point of view. If you have a male character, I'd almost suggest that you change the gender of your main character to sell a novel in this climate.
And as far as erotica goes, it is nearly impossible to sell any sexually explicit material from the male point of view, unless it's gay or M/M.
I have never seen a time in publishing where women's tastes have driven the market. I'm hoping that it produces a whole new crop of books that are unique (and profitable for all).