Don't paint the cabinets. They look like cherry or maple. (why do people wanna turn quality into garbage? jeez) Just change your countertops. The wood on the edges looks dated.

I don't see why everyone is anti-painting. (Of course I have painted over horrible oak cabinets in two of my previous kitchens plus lots of trim, closet doors, etc!!) In the photo the color of the cabinets doesn't appear to go well with the tone of your new floors. Your kitchen also doesn't appear in the photo to have a window and a light cabinet color would really brighten it up.

I don't mind the cabinets, but you do have an awkward layout. I am assuming the stovetop is in the niche next to the wall oven? It would be more sensible if it was down the countertop from the sink. I also would remove the small uppers - they must have been over something in the previous owners day. Then the stovetop - or maybe a range could go down from the sink - give yourself plenty of prep space between sink and stove, then wall oven and pantry. I don't know if you have enough of the right size cabinets to make moves. If you got rid of the cabinetry on the left - moving some of it to the right hand wall, you could do a small island. It is hard to get an island in a U-shaped kitchen, but works well in an L shaped kitchen. A gray/blue or white island would add some color.

I have an oak kitchen. It is in my "my pics" idea book. It is probably not your style, but my quartz counters, farm sink and backsplash would fit many styles and work well with oak.

If you cannot improve the layout, wait on counters until you can afford to make layout improvements.

Well, the normal design sequence is to choose appliances, do a functional cabinet layout, select cabinet face material, then (if feasible) select floor. I'll bet a high-quality paint job will cost more than replacing the cabinet doors. If you want raised-panel, paint-grade custom sized ones are pretty affordable. One does have to be pretty precise to get such an order right.

The little uppers on the left should be changed. That side looks very undefined. A peninsula/breakfast bar could be good. Looks a little tight for an island. Soffit with crown molding involves quite a bit of labor.

The kitchen does not have enough width to hav an island. A peninsula could work. But you need a Kitchen Designer to help you with all of this. Proceeding without a full plan can caus expensive mistakes and backtracking.

maybe a peninsula

with seating