Hello! Do you have the dimensions for the space? Adding a small bistro size table with two chairs and some artwork with some color in it would do wonders. Also, you could consider an area rug for the space and potentially a standing coat rack to the right of the entry door. Some pattern and color in this space would do wonders. Do you expect that guests or your family will utilize this space as a seating space or are you just looking for something to fill it? If you do not think it will be used as seating, a table with fresh florals or some coffee table books and a tray to set them in.

See images for inspiration below;