ok let me list them. once you have a flourecent light (preferably a power compact light or a T-5 light) you can have these corals:
Zoathids
Palythoa
Green Star Polyps
Pulsing Xenia
Ricrodea Florida
those are some of the most popular corals due to their low-light nature. you should at least have 1wpg though.
as a beginner you should start with Zoas or palys along with mushrooms. after you are able to keep your tank stable you could probably go as far as Acan and Blastomussa coral in terms of staying low-light.