You can have an eclectic look in here. I'd go for black. Then you don't have to worry about wood tones clashing, and the chair legs are quite dark, which would look good with black too.

Everything in here has a bit of a pseudo-traditional style and that can be broadly interpreted. I like this piece below from Birch Lane. It feel traditional but not ornate. I like that you can see the floor beneath it. It helps it feel less cumbersome, which is nice given the darkness of your walls.

Your table leg will rarely be seen so I wouldn't worry about factoring that in to a matching buffet style.

The woods don’t have to match exactly just like the colors of the chairs and walls don’t match exactly. Strive for similar tones or go off the rails with pattern

Thank you both for the comments! LOVE the patterned piece.