I'll get the ball rolling. I don't think you need to do much to change what you have, because you've done a beautiful job already. Here are a few suggestions just to add in some color. I worked off the little bit of color you already have in the rooms.

Beth H. : , we love the idea of the console table against the wall near window, and the stools underneath. And also like the styling you suggested. For the fireplace, we were thinking of a round mirror as the anchor. We though about a large (55"x40") abstract painting in the wall on the right side of the fireplace (which has similar dimensions than the one on the left). We hope this provides balance with the console that will go in the same wall, on the left side of the fireplace. Whould this work?

Which coffee table goes well in this room? Should I consider something else?

I sympathize because it took me a year to find my coffee table and even with that I am changing out the tops. Not all nesting tables are small. I think nesting tables work with your set up because they are functional. Think about how people might be sitting and having drinks or snacks. A typical set up might have a sofa and two chairs with a table between the chairs and a coffee table in front of the sofa for people in the sofa. I used to have two sofas that were perpendicular to each other with a large coffee table in the middle and it really wasn't that functional because it blocked access to the sofa. It worked but wasn't ideal. This nesting table from Anthropologie is actually fairly large both in visual presence and actual functional surface https://www.anthropologie.com/shop/audrey-nesting-coffee-table-set?category=furniture-coffee-end-tables&color=013&type=STANDARD&size=One%20Size&quantity=1 Small: 16"H, 34"L, 26"W Leg Height: 15" Large: 18"H, 42.5"L, 32.5"W This one is a surfboard shape which works in terms of the shape. An amoeba free form shape would also counter balance all of the geometric shapes.