I use a Tech 21 Evo Check. The bumpers extend just past the screen, designed really to protect the screen when you put it face down.
Though in reviews it does very well indeed in drop tests. This one in particular, there are a couple of face down landings form 10+ feet up on concrete (about 5mins in to the video onwards) and the S8 is fine. Video has lots of drops from different heights on wood floor and concrete and slow mos of the impact.
Feels good in my hand and secure, like I'm less likely to drop it in the first place.
Also very easy to locate the fingerprint sensor which is my only unlock method.