In our two tanks, we have a coral beauty, an eibli, and a keyhole (keyhole and eibli are in the same tank...friends). The keyhole and eibli are both in with soft corals and haven't bothered anything.
Another rare dwarf angel that is gorgeous is the goldflake angel, which is a cross between the half black and the lemonpeel (I think). They are up there in price, however!