Can you wait to decide until after you move in? The flooring and wall‘s shades, and adjoining spaces may influence your color decision. Given the size of room and layout possibilities, the style and size will need to be considered as well. In the meantime, look for inspiration on line. Hard to suggest without knowing the look and color you prefer.

I'd do a blue pattern. Many furniture stores have designers. If you have a choice of upholstery, a designer (they are usually free) can help you find a range of blue and blue patterns that go with the sofa. Then be sure to sit in the chairs to ensure you find them comforable.

Not wing back and honestly I would do a much simpler design for the chair to keep that space from looking too stuffy. I sure hope those pillows are not coming with the sofa the 2 blue ones are way too big I do agree wait until you are in to get the chairs .

I think I would select the coordinating chair style, but select an accent fabric that works with the decorative toss pillows.

If you can still change your order, I would recommend you select a bench seat cushion instead of three seats. More comfortable to sit on in my opinion.

Lots of natural light and a white mantel, Are you planning to paint the walls a rich color Blue?

sounds like you prefer a traditional, elegant style space.

I too don't care for wing back chairs for comfort, but mixing other styles would be interesting too.

https://www.nookandcottage.com/products/selma-occasional-chair-lena-sand?pr_prod_strat=e5_desc&pr_rec_id=aa4f6b91d&pr_rec_pid=4344754864170&pr_ref_pid=4344755322922&pr_seq=uniform

There are many different types of accent chairs you could do in your new home with a classic traditional style. Below are a few different chairs we have used in design for clients, which might just help as well.

Parisian Elegance · More Info

Parisian Elegance · More Info

Traditional Renovation · More Info

Thank each of you for your suggestions. I think I will take your advice and wait until we are in the house before making a decision. Thank you for your time.