Measure out your space to see how much usable space you will have for the furnishings. A sectional might or might not be a good option for you. As you shop gather dimensions of pieces you like then use tape and place it on the floor so you can see how it will look space wise. As mentioned above pick your focal point. Your fireplace is so nice it seems that you should work around that.

Are you interested in adding something besides beige? The look appears bland to me. I love color and might have some ideas if you are looking to add something else.

I like your rug, but it should be a larger size so the front legs of the couch and chairs are sitting on it. I think a glass kidney table would open up the area in front of the fireplace and allow you to see more of the rug. I wasn’t able to get the angles of the table and chairs right in this mock-up, and I’m not certain the right chair would impinge on the traffic path too much. I think it would look best to have both chairs face the couch, but that would entail mounting the TV on the wall opposite the fireplace. That may look odd, though, and it is not ideal to have a traffic path in front of the TV. I’m assuming the couch cannot move back about a foot without blocking access to the door. Is that right? An alternative to a coffee table would be a couple of poufs that could be used to put your feet up, or to use with trays when needed.

You say you have a LR and a TV room which space are you showing.? To get real help we nned measurements of the space and the furniture . I think right now it looks bare and uninviting with art on the walls and a couple of pillows the space will feel different and I agree if this is the LR space then the chairs turned to face the sofa would be a much better choice but I need a to scale floor plan of the whole living space with all measurements clearly marked . I have no idea where each space is at the moment.