I have Ohms in a large room (not as much square footage as yours), but open to one side and a much higher vaulted ceiling. I have them about 2’ out from the wall behind them and about 2’ from each side wall. Not exactly a corner placement, but closer than you see in most setups. I can heartily recommend Ohms.
Another speaker that I’ve seen recommended for corner placement are Audio Note speakers. Haven’t heard them personally, but they seem to have a devoted following.