Dwarf angels are a unique lot when it comes to corals. Some individuals will nip at them, some won't. There doesn't seem to be a specific species which is less likely to do it than others. Lemon Peel angelfish do however have a reputation as more likely than the others to nip. Also, they do have a rather specific list of corals that they may nip: Open Brains, favites brains, millepora, stylophora, pocillipora, and rarely leathers. These seem to be the most often nipped, if the individual decides to nip.
My reccomendation: not a good mix with corals.