I would move one of the sofas to make an L shape. How can anyone view the tv without turning their head? Not very comfortable. Built ins each side.

You need long thin matching coffee tables that allows 18" from the coffee table to the front of the sofas. You could also have two ottomans that allow a person to place a beverage on. Allow them to be 14" apart so someone can walk between them. Bookcases would be the usual answer on either side but it's not a large room. You could also have two large (and I mean large) art pieces on either side. Must be relating pieces of art. There is something unusual and surreal about your two large sofas in that room that you could play off of in a minimalist way. I would make a statement since you are well on your way there. Also art would be the cheaper of the options if you do not need bookcases or cabinetry. Could be stretched canvas art. I love md-canvas.com for a good value. Might be a jumbo diptych. I would do an abstract.

Post pictures of the entire room and you will get more responses that help you with your dilemma or give you more options.

This is what I did with my fireplace. The etagere connects the spaces between the living room and dining area. Hope this helps.

I would use the whole wall to build a unit with lower cabinets for storage and shelving on either side. Lights in upper display on both sides. Designated space for TV above fireplace.

Pictures of the entire room would help. What else is in the room?

Please add lighting....tables and lamps on sides of sofas away from fireplace wall