I was interested in getting a hippo tang for my 90g, but due to the obviouse problems with a hippo tang in a 90g I'm now looking for a replacement, similer shape, look, sizeish, and must be reefsafe. All idea are welcome
I may have suggested these to you before but a mimic tang is going to be about the biggest tang i would try in a 90. Koles and bristletooths are other options. You could try others but they will need a bigger tank sooner rather than later.
You could also look into Bellus Angelfish, I don't know too much about them but they are beautiful and reef safe compared to dwarf angels. If you are ok with dwarf angels then a pygmy angel would be very nice. I've read they are less likely to pick at LPS than other dwarf angels.