Kenya tree, brown palythoa, green palythoa, and Devil's hand would also grow fine in your tank. I have pieces of any or all of them that you are welcome to, for free. If you decide you want any, I will caution you on their placement.
I will take you up on that offer i am 15-20 minuets from Plainfield
Also how many corals would be able to be put in tank in general?
Corals aren't limited by water volume/filtration capacity like fish are because photosynthetic corals don't poop so they aren't adding to the bioload. The key thing is having enough room to allow the corals to have their own space so they don't fight each other via stingers, chemical warfare, etc.
Photosynthetic corals do poop. Zoas crap all the time