Couple of suggestions...when you say piece by piece - and I assume decisions are made that way as well - I would sit back and think about the room as a whole and what pieces would lend itself to that look and your needs - more seating, side table, floor lamps, art, etc. Looking at lots of pictures will help you define a look as well as trigger ideas on individual pieces; ie: coffee table - see ideas below - you should measure out what would fit best. First thing I would do though is try your couch on the opposite wall and center it. Add a large piece of art or series of large prints above to create a needed focal wall. The low unit (and I assume tv to come) would work fine on the other wall. The rug is not the right size - either just under the coffee table or the size in second picture. When you can, drapery on the sliding door would warm up the space and I would bring in a rustic element to tie in with the barnwood - leather chair, tables, artwork that had some brown in it, your rug choice, etc. I have attached a link to Pinterest Scandinavian living rooms with grey couches and you may get some inspiration on accessorizing as well as coffee tables. You could go round, rectangle - stacking tables may work better or a square. https://www.pinterest.com/search/pins/?q=scandinavian%20living%20room%20with%20grey%20couch&rs=typed&term_meta[]=scandinavian%20living%20room%20with%20grey%20couch%7Ctyped

Thanks for the suggestion on the rug! I needed to hear it! It was a 5x7, and I just got off the phone to up it to the 7'6''x9'6''. I thought I wanted more hardwood but I think a little more rug would be better, especially if i want to add a chair or ottoman.

Still debating the coffee table. What do you think about a glass table?

https://secure.img1-ag.wfcdn.com/im/29237364/resize-h225-w225%5Ecompr-r85/3654/36544940/default_name.jpg

Or,

https://secure.img1-ag.wfcdn.com/im/1312643/resize-h225-w225%5Ecompr-r85/3624/36245705/default_name.jpg

Glass is a pain to keep clean and I also find them a bit too cold, but my style is not as modern as yours. Be sure they are not too long.

Thanks Maureen! Drapery is a good idea, and I love the arching lamp. I'll spend some downtime this weekend looking for ideas.

Agreed on the glass, but I wasn't sure how difficult it would be to match the coffee table with the wood against the bar. For that reason I've been looking at glass and polished white (similar color to the tv console).

How does the table shape affect the feel of the room? Rectangular seems more practical in my mind but more plain...

The shape of the coffee table doesn't affect the room...the style does more so. The shape is important in regards to the relation to the couch, movement around it and functionality. West Elm has quite a few that I think would work and there is a sale.
https://www.westelm.com/shop/furniture/coffee-side-tables/?Kenshoo=fe89a50c-0b61-4c49-82f6-cc9b568ee163&cm_ven=BrandSearch&cm_cat=Google&cm_pla=Brand_Search_Generic_Exact&cm_ite=west%20elm%20coffee%20tables&gclid=EAIaIQobChMI_-GN847L1gIVLJPtCh1NvQFREAAYAiAAEgJkr_D_BwE

Thanks, that makes sense. My couch is 18.5'' high so I'm on the hunt for something 17-18 inches. I'll keep you guys posted!

How about this one? It's a marble top, a bit more than I'd like to spend but the high polish white tops are only 15-16in in height. This one is 18 inch in height.

And thanks everyone for the feedback! It's been super helpful.

https://www.wayfair.com/Brayden-Studio-Louisa-Square-Coffee-Table-BYST5965.html?piid=23594384#readmoremodal1

I like this with your bar stools etc. Right size to it seems

https://www.wayfair.com/Red-Barrel-Studio-Bitter-Creek-Coffee-Table-RDBS1226.html