You could get something like this and paint it the color you want. https://www.ikea.com/us/en/p/brimnes-cabinet-with-doors-white-40300662/

If you can afford to do it, I would put matching white cabinets in that space, to the same height as your others. I would use it for maybe all the Costco/Walmart stock-up things that families need. Or maybe extra dishes, or appliances (air fryer, breadmaker, those types of bulky things).

To do it right, you may want to remove that approx 4" wall next to the refrigerator, which would even give the cabinet a little bit more space. Maybe have it portioned so the side of it could hold broom/mop.

I would keep it white, because you already have 2 colors of cabinets in your kitchen, and adding a third seems overdone (to me).

Thanks for the ideas!

Perhaps try a bar area or coffee bar area. Below are some ideas for you from our designs:

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