To stray away from the matchy-matchy dining set, try trading out single chairs for benches and banquettes. It will add nice variety to the space and is a great opportunity to add bright accent colors or patterns (be careful about clashing, though).

Benches can help a space feel more casual, but they don't always have backs, which can be uncomfortable for longer time periods. On the other hand, banquettes are almost as comfortable as a sofa, though that comfort comes with a higher price tag.

If you're a little wary of seating diversity, try mismatched chairs instead; you can try different styles or even just different colors for a more contemporary look.