Raise 'em up
My front three LCR's are about 6' high, angled down and in appropriately, all directly on axis to the primary LP.
As long as acoustic aspects of the adjacent surfaces are addressed, I feel the above the display, and aimed
down and in approach is a very good solution to covering a room's listeners. I have as much live sound background, as I do home audio enthusiast experience. That said, when one is attempting to cover a room which has varying positions front-to-back, mains at normal seated ear height become problematic. This is true regardless of venue type,...small family room, full tilt HT, to a theater environment. Covering the listening positions with critical MF/HF is certainly facilitated by elevating the mains, and aiming them down and in.
Typically, the theoretical ideal is all three mains in an even horizontal plane, and aimed for axial listening. To accomplish this in a room with listeners at varying distances from the front, the only answer is proper elevation and aiming.
Good luck