I think you need to move the loveseat just a bit closer to the couch, and be sure you are at a right angle with the two pieces, but imo that is much better. Your visual line along the kitchen wall is not so choppy with the couch there as it was with the loveseat. Having the loveseat on the longer wall allows you room for a chair in the back corner(obviously something more cushy in the future), and plenty of easy access to the door as you said you needed. Having the loveseat on the longer wall also takes away the feeling of the back wall area being barricaded from the seating area by the long couch. It is no longer just a backdrop, but a usable part of the space with depth and interest. Be sure your coffeetable is moved in closely enough so that it is usable for both the couch and loveseat. Thanks for moving things around and indulging me. I like it better this way, tho I would still like to see the tv moved, but I know how men can be about those things. Whatever you decide, you have a nice space and great furniture pieces. Now you just need to bring in some of the great elements that squirrel and chicory have shown you.

I think the two chairs would be much more versital than the love seat. I would get accent chairs that are on the smaller side so the space will not seem too crowded and a light fabric will help lighten up the space.

Placing a couch centered on the fireplace is going to leave little room to walk thru that area....but maybe that's ok... I really don't know. Unless you replace your current furniture with new pieces that are about the same size, and in the same place, you may be changing the traffic paths in the room. That's why, once you have an idea of what you want, you should move your existing furniture to the way it will be in the future, so that you will know whether you like the new arrangement, before you commit. 30 feet is long, but 13 feet is not really a narrow space for a living room. It's pretty normal. My guess is that your house originally had 2 rooms side by side in that space. If you think the space is tight, look for chairs and sofas that are not as deep, back to front. There can be a big difference. Your brown recliner is very deep. Apartment style furniture can be just as comfortable. Having a foot of padding at the back of a chair doesn't really make it more comfortable - it's just a style. You don't sink back a foot when you sit down. Here is my mock up of where the traffic path would be if you have a U shaped conversation area in front of the fireplace and TV. I gave you an ottoman instead of a coffee table in front of the sofa. And I made the upholstered furniture about 4 feet deep.

To start no TV above that FP and IMO getting rid of that big entertainment center will free up that wall for a wall mount TV above a lower cabinet and if you want to add some display maybe look at IKea Besta for some cool ideas . Get a sofa and either place it facing the TV or the FP depending on how you watch TV then see how much space you have for chairs. I really dislike sectionals for seating IMO poor for conversation and only 2 people get arm rests which IMO means 2 people are comfortable like a sofa except you paid double.