I have been thinking of what coral I would suggest ,,, its hard not to go with the Confetti ,,, that's a really awesome picture of the coral WOW that's nice ,, I like the old school Purple Monster or the Oregon Tort ,,
I am not going to suggest the Purple Monster though

its just such a slow grower ,, would take a long time to fill in that choice spot in your tank ,, maybe the Oregon Tort ,, its kinda a slow grower also ,, maybe put several frags in the spot ,, would fill in that spot quicker ,,
I would buy a coral that most people don't have in their tanks ,, at least when it comes to colony size ,, that's just me though ,, its going to be your center piece coral ,, your not going to be fraging it

you can also buy this frag from Adam at Battle Corals also ,,, maybe pay a bit extra for a really chunky frag ,, get yourself a really good head start with a big frag
My choice

The Pro Corals Superman Acro

I have seen pictures of grown out colonies of this coral ,, the bigger the colony gets ,, the better looking it gets ,,