Reddit reviews Better Homes and Gardens Harper 3-Piece Pub Set Bar-Style 42" Table with Two Seating 29" (White)

I don't see any problem with a round table (especially a drop-leaf), but if you want something narrow so that you can pass between the table and the couch, you might want to look for a rectangle shaped table. Are you looking for something lower or higher?

You could go for a simple drop-leaf or mid-century (one, two) bistro table or something more modern, like a pub table (one, two, three). Either way, I'd encourage you to mix & match chairs to suit your style and comfort level, since sometimes dining sets can look a bit dated or cheap.

Another tip for your plant fantasies I've suggested to others before - add a shelf or two across the window for some extra storage/light. Maybe hang some around the window as well.