Yeah. I tend to go for fill-in-the-gaps/behind-the-scenes type stuff, or ones that are based on current canon and kind of speculate from there.

Then again, if it's crack/comedy, I don't care if it breaks canon extensively.

I also tend to like short fics or drabbles, as I often don't have the time or patience to keep up with long or multi-chapter ones. One exception that I can think of, though, is shoebox_project (when I still read HP fic), but I think I started reading that before books 6 and 7, so it was technically less AU then.