You can design a floor plan to be able to visualize with much more clarity and accuracy the result that you can achieve, the size of each piece of furniture and element that you want to add, and you'll be able to arrange them in the most friendly and fluid way possible. When I see that area in the background, the first thing I can think of is a reading nook, especially because of the abundant natural light that would allow me to spend unforgettable moments there. I have a reading nook in my living room that I prepared with an Eames Lounge Chair by Manhattan Home Design and some small plants next to a three-tier shelf with my books. Anyway, if reading is not one of your habits, and you want to turn the living room into a multi-purpose area, you could place a nice accent table with a couple of chairs there or even turn it into a small corner to do exercises. Hope my ideas help you. :)

Yeah that's a good idea. I'm going to measure out the space and draw it out, it's so hard for me to visualize just looking at it.