Depends on lighting, honesly what you prefer. Mixed reef is where im at in my stages. Im leaning towards sps, myself. I do love anything moving, pulsing zenias or anenomes. Open brain corals are lps, they are very hardy and you can feed them! I would hold off in the anemone for a while until you get some research done allowing your tank to mature. Good luck, find out what you love and go with that.