Today I added Story Pilot. Whenever you check any of these markets, make sure that's what you want -- PA's site, for example, does ALL markets he's heard of. Story Pilot specializes in sf/f/h.
Preditors & Editors, like Piers Anthony, list all they know. Not just genre.
Cross-reference. Don't just grab and run. Absolute Write is there to help you interact with other authors and see what they're saying.