I'm a big believer that dead SPS pieces like big branching Acros are under rated..... nicely cultured dead skeletons can pull.off quite a dramatic aquascaping look.
Start at LFS coral.places and ask for dead coral skeletons ...
also ask them where the dead skeletons of past highschool aged workers who played on their phone instead of W O R K I N G are kept. Lololololololololol