I have a 75 gallon with the following fish:
1 firefish
1 bangai cardinal
1 blue hippo tang
2 false percula clowns
1 tomato clown (the clowns all get along great!)
1 royal gramma (my favorite fish of all time!)
1 blue and yellow damsel
1 queen angel
1 green BTA
1 toadstool leather
3 colomies of green star polyps
3 colonies of Zoas
a large (5 inch) lobed brain coral
1 small brain coral
1 galxia coral
1 tooth coral
1 pipe organ coral
1 hammer coral
All parameters are normal but I maintain a wet/dry, skimmer and weekly water changes and LOTS of macro algae.
I think you have room for more (for what that is worth). Fairy or flasher wrasses, Anthias, gobies, cardinals, basslettes are all good choices and reef-safe.
Many angels can be safely kept with corals, some individuals are poor candidates. Carribean angels tend to eat sponges but are not usually polyp nippers. If you get an angel, be prepared to lose some corals or sell the angel if he/she eats them.
Mike