First of all, I would like to compliment your beautiful apartment. The space is very elegant and classy, love the color you have chosen for the walls. I really enjoyed working on this project, thank you for uploading it!
I decided to use a three-seater couch and two chairs, so your sitting area can be gathered around the fireplace instead of the television, and you can still see the tv very clearly from the couch, without the chairs disturbing the view. I loved the idea you put in the resources tab, the mirror sitting on the fireplace, so I decided to include it. The mirror expands the space and draws attention to the fireplace, which makes it the main point of your living room. The round table you mentioned seemed like a nice idea, but in my opinion, it would be redundant, considering the dining table you already have in the kitchen. I thought that you wouldn't get good use out of it, so I decided to complement your living room area with a simple wooden console table. The entrance area is decorated with a small shoe closet, mirror, and a coat hanger. I prefer hanging the tv on the wall. It looks more elegant, and it sits at a better height for your eyes. If you prefer it sitting on the tv shelf, it will also work great. You will see that I included a small bookshelf next to the tv.
You can find some furniture that I used in the model using the furniture list. I hope it inspires you!
Wish you luck with the renovating process!