Forget screen protectors for edge phones, they simply do not work
I have this for my s7 edge:
https://www.amazon.co.uk/Spigen%C2%A...spigen+s7+edge
Its been dropped multiple times and is used by my 3 year old all the time. I also just throw it on my desk every day face down. The bumpers ensure the face never touches the surface (unless you were to put it on raised surface). When its face down you can see the gap.
I've had it since April, and there are no scratches on the phone.