In the living room stacked high on top of the entertainment center.
On top of bookcases.
On the dresser in the guest bedroom.All of my suitcases are vintage and in good shape. I've picked them up through the years at auctions or flea markets. If they smell musty inside you can put a couple of dryer sheets (Bounce) in and leave for several days or sprinkling baking soda inside can also help.