Cream or black comes to mind.....can contrast chairs or do upholstered chairs in textured fabric that blend with console color.

It’s a good thing you aren’t matching, as the dining room will be more dynamic and interesting. It really comes down to how you want the room to feel and what works with adjoining spaces. Take a look at inspiration pictures to help you decide.

There is absolute zero need for a matched table. We have no clue the size of the room or the size of the table.......do we? : )

Show a pic of the existing space, some dining rooms you love as inspo pics too. What's your floor? Will you have a rug? What is around the room in other rooms?

You haven't enough info to suggest....yet

I need to see your LR for instance to get some idea of your style in the other spaces. Thang goodness you could not get the matching other pieces . IMO matched sets are boring. I think from the limited info a nice modern table but that is as far as I can go