To break up all the linearity and big boxy features think of curves. Looks like you have room for a pair of curved sofas and some theater chairs. Maybe a cocktail corner by the windows. Your large empty wall could use a big shot of color. Pick up that color in rugs and pillows.

I have a house with an odd shaped living room. It’s fairly open concept, and leads directly into the kitchen as well as the dining room and foyer. I am getting new furniture and would love suggestions on what pieces to get, as well as where to put them! Our TV is currently mounted above the fireplace mantel. I’m not a huge fan of entirely matching furniture sets or Loveseats. The more cozy and conversational the better- but traffic flow is obviously critical! I’m considering 2 couches, or 2 couches the chair and a half, or all/some with 2 velvet accent chairs. I’ve included pics of the room from different angles, the grey couch/furniture I’m looking at, and a quick sketch floor plan! Thanks to anyone who has advice.

I would love a big family photo framed or TV above the fireplace. A three-seater white couch with multi-colored cushions. Two single-seaters in front of it a small. I found a few ideas similar to your room that may be helpful.

You don't really need a coffee table, since you have the side tables. Just tuck a c table under the side of the couch where there is none. That should free up some space. Since you want to put a unit where the chairs are, the chairs will have to be relocated. Even with your two couches and chairs, you only have eight seats. Add more with poofs or ottomans. Relocate the two chairs in front of the fireplace (with their backs to the fireplace). Or as suggested, move the couch that's in front of the window to face the other couch. Then the chairs can go in front of the window. I agree with art going around the tv.