a small round table would be perfect. style is up to you.

We have almost the exact setup in our second home ( condo). We use a round drop-leaf table....with the back leaf down. The table can then be placed flush with the wall. This allows plenty of tabletop space and plenty of room for walking around the chairs.

Perfect space for what grapefruit mentioned. Maybe check Ballard and Pottery Barn for some ideas.

A table like you see below, from a design project of ours, might work great for your small space. Also notice the bench.

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