Be careful with all of those wrasses, they can get very agressive. Also, the damsel might pick on the blenny and the goby, they can be very agressive, I once owned a domino damsel that killed 6 of my fish in a month. the Royal gramma and orchid wrasse may also fight, just pick one. as for a tang, yellow and purple tangs, kole eye tangs, and possibly a blue tang. I recommend just picking one tang though.