I really like the color of your sofa. My sister recently bought a similar one for her new apartment. However, on the opposite side, I would advise you to hang the TV on the wall or make a special mount. This will free up space for a coffee table. I would recommend a table made of wood and epoxy, something like https://maxiwoods.com/product-category/signature-wood-tables/coffee-tables/ I think a table with gray or dark blue epoxy would suit your interior.

I used 2 saw horses and a piece of plywood for years while I saved for my dream DR table a really nice huge table cloth and could sit 12 at it. On day to day we just used a piece of plywood 1/2 that size Stored them in th garage . We now have a glass DR table that seats 6 day today and 10 when expanded. There are so many cool expanding tables .

Butler's table? Is that like a sideboard? Because of the windows, I think I'd rather the table /sideboard be placed against the back wall. If you place it on one of the sides, the two windows at the back will be partially blocked, and I don't think that'd look right. I think I'd look for a small table that'd (mostly) fit between the windows. Then I'd flank it with drapes on the outsides only. Do add lighting above this table while you're moving the chandy.

Good luck with the hunt I have rarely seen these as used . You can get replicas of the Saarinen maybe check those out too.