I’m a huge fan of the IKEA VITTSJO Series
I love IKEA furniture because you can make it your own. There's always a way to customize their pieces to your fit your decor. I have a couple of these tall metal and glass units and I use them to display my handbag collection. But they can really be used for almost anything.
I particularly like how these shelves are against a black wall (LOVE black walls) it really makes all the items on display stand out even more.