Go onto internet and find one of the 3-D room mode graphs. Put in your room’s dimensions, and look on the graph for your room’s low pressure zones. Try your sub in any of those locations. That’s the way to minimize your room’s (any and all rooms) ability to produce standing waves, which create bloated, booming bass.
As the graph will illustrate, the worst location is always in room corners. Second worse is where any two room structure surfaces meet---floor and wall, ceiling and wall, wall and wall. That’s why bass traps are always placed first in corners---that’s the highest bass pressure zone in all rooms.