help what fish

I have a 125 gal 6'long need help with what is compatable with tank and coral. i currantly have 1 naso tang 1yellow tang 2 perc clowns 2blue green cromies 1pj cardinal 1spotted mandilen 1yellow watchman goby 1lawnmower blenny snails, red and blue hermits sandsifter star One fish I want is a...