That's unfortunate because those country French chairs are perfect for the table, hutch and rug.

I think your only option might be to contrast the table with bistro wicker or rattan chairs.

There are good quality furniture companies still making traditional chairs:

My breakfast table chairs are from Theodore Alexander.

https://theodorealexander.com/type/dining-chairs.html

My dining room table is from Englishman's Furniture and they make chairs too.

https://www.englishmansfurniture.com/fine-furniture/chairs-and-barstools

Endless choices and it really comes down to how you want room to feel, matching table or not, and budget. Narrowing these down will make your decision easier. Take some time to look on line for inspiration, which will give you ideas.

What is it you are trying to change, to improve on; did you have an inspiration idea?

More comfort? Upholstery? Lighter colors? Eclectic but sort of still period look ( such as Beverly’s ideas)? Modern /traditional mashup ( eclectic)?

Are you looking to change any other elements in the room also?

The current chairs seem fragile with the table, and when 6' ++ grandsons visit. Was thinking of having only four chairs at the table and having the current chairs available when needed and when the table leaves are used.

Have you ever thought of painting your china cabinet black or charcoal with a white interior to show-off your blue & white china? It would coordinate very nicely with the black in your area rug.

I love the idea of using black chairs in here with this table. It will bring out the black in the rug and add some variety to the easy of matching wood. Lovely room!

The idea of painting the cabinet black as someone suggestion would not go, as my husband stripped many coats of paint to get to bare wood and then stained and finished. The black chairs is something to consider.

Maybe something like this would work.

Amazon.com - mikibama Linen Dining Chairs Set of 4 Channel Tufted Kitchen Dinner Chair Comfy Fabric Upholstered Accent Chair for Dining Room with Solid Wood Legs (Black 4pc) - Chairs

Something with texture - like the options Beverly posted - will update the whole room. Caned back chairs might not be great with little ones, but they do grow up.

Not a fan of black chairs. I love the look Maureen posted too.

@MerilynStirrett I can certainly understand why you husband wouldn't paint the cabinet after working so hard on refinishing it. However, the chairs with black frames and a light upholstery still work with your wood table and china cabinet, would contrast with the wood and coordinate really well with the black in your area rug.

The dark color that responders refer to is actually navy blue. Many of the colors in the breakfast room rug coordinates with a rug in the adjoining sun room.

Maybe a simple blue fabric parsons chair for a bit of a different look and for sure sturdy . I like the original chairs myself. I have a son and grandson both 6'5" and they sit quite nicely on my aunts furniture much like yours . I think since this is the breakfast room your whole home must be very traditional and lovely so for sure no painted furniture and I find the cane a bit casual.

Now that I know the colour in your rug is navy and not black, just saw these chairs with navy upholstered seat and though of you...