I would look towards wrasses personally. Yellow and purple wrasse, coris wrasse ,fairy wrasses, flasher wrasses etc. They are generally reef safe, look them up on live aquaria to be sure, will be out all the time once fully acclimated and sure of their safety, and are very active. The only one I have had that I didn't like was one of the ones designated as a Christmas wrasse. It was fine but never comes out when the lights are on even after 6 months. Truthfully I have given up even looking for it in the early morning and don't even know if mine is still alive. There are different species designated as Christmas wrasses though so you may have luck with one.
The dwarf Angels are hit and miss with corals. I have had a coral beauty that was a model citizen for years and died. I replaced it and the new one are every single polyp off of my birdsnest in a couple of days. I also believe it was responsible for my pipe organs demise.