The type of coral you can support depends on many things.
What kind of lighting do you have?
What are your water parameters? Ammonia, nitrite, nitrate, pH, SG
What size tank is it and what else is in the tank?
How established is the tank i.e. how old is it?
Answering these questions will help folks suggest some corals you may have success with. However with the angel, you might not get away with any coral at all. It will depend on the habits and temperament of your particular fish.