I'll let someone else chime in, but really its a lot with what you're looking for. Most get their food from the light and water column while some require target feeding. Do you have a LFS
near you? I have a good one around me, when I find something I like that I don't know a lot about I just tell them what my lighting is, and ask them how fast it grows. Corals do best when given space in between other types.