I don’t know if the seats are narrower on the dream vs wish but we actually scored seats in the opera box on 2 out of our 3 nights of live musicals on the Dream. The opera box (I think that’s what it’s called) are seats on the balcony level on the sides and these had regular chairs without arms and you could move them around the space. There were I think 8-10 seats in each opera box. The first night we lucked out and found these seats and then got in line early the next night in an attempt to grab them. I know that’s not what you were asking for but I figured I’d share another option!