Small rooms can sound fantastic. The real trick is to scale your speakers and treat your room. You probably want thick wall to wall carpeting, absorption in front and behind your seating… also absorption at side wall reflections and tube traps in front corners.. and corner absorbers. All, are not required at once. You can see my system, how I treated my room (myID). I would slowly choose primary components (after carpeting)… then position, and start treatments.
One of the most incredible systems I have heard was in a 8’ x 10’ room. It was all tube, with appropriate sized speakers with treatments… including some flat pieces of plywood (covered on a decorative material) at an acute angle to the horizontal to move the images higher. It was mesmerizing.
Take your time.
All those speakers are choices?… and a budget NAD integrated… more info please. You are going to want to match your equipment… electronics with speakers and room size.