Bananavilla

Raja Puri is #1 in my book but at only 10ft height in your greenhouse it would be stuffed in the rafters or pushing through your greenhouse poly by the time if fruited.
Raja can get up to 8ft (trunk + leaves). Southerngrower is walking a fine line keeping them in his greenhouse at 12ft.
Look at Dwarf Cavendish or Mauritaus.
Mike