I would avocate first seeing whats out there and then trying to identfiy what is of interest to you to know its water requirements and lighting requirements prior to obtaning it if its legal and your dead set on removing corals from the wild vs obtaning corals that have been cultured in an aquarium enviorment.
You have a responsbility in knowing what the requirements are in the coral before removing it from the wild. With out knowing the requirements it will mean almost certin death for the coral and only lead to additional removal of wild corals to replentish the losses. This is a lose/lose situation where as obtaning coral frags
from fellow hobbists of corals that interest you is a win/win.