I have tried quite a few angels over the years, and never really worried about reef safe vs not reef safe so I have tried a wide variety. I haven't tried any of the larger angels, but I have a decent amount of experience with smaller ones.
bi-color - I have tried three different times, first two were zoa and SPS munching machines. My current one has been a model citizen for about a year now. I would not suggest this one though, defnitely a gamble.
Potters - I have had two, neither did much damage, but occasionally nipped
Flame - I have had three, about the same as the potters
Bellus - never touched a thing
Lamarck - never touched a thing
pygmy (cherub) - chomped on my zoas
lemonpeel - nipped at everything, but I really never lost anything
Those are all the angels I have tried, and what success I have had or not had in my reef tanks. The Bellus and Lamarck I had were great fish and never touched a coral. As you can tell I am a huge fan of bi-color angels, but I am probably the only one haha, I would advise against them though because it took me three angels to find one that behanved and who knows if it will last.
All of Puebloreefer's suggestions were excellent choices, I have always been a big fan of the Bellus and Watanabei angels. So many of the dwarfs are gorgeous fish, but honestly I think it is always going to be a gamble.
