VRS Design has some excellent cases for the Galaxy S7. Previously known as "Verus" this year these guys have some of the best cases we've seen yet. In fact, the High Pro Shield is what I'm using on my Galaxy S7 and Galaxy S7 Edge.
The High Pro Shield has a dual layer design with a soft inner core, a hard polycarbonate outer shell, and a brushed aluminum (looking) plastic design on back. It looks premium, while staying thin, lightweight, yet durable. It comesin multiple colors, fits great, and works very well.