Case-mate makes the best screen protectors I've ever used. I tried many before discovering their protectors. If they don't make them for your device, equivalent in quality is boxwave...they come at a higher price but cover more devices.
As mentioned though, protectors aren't very necessary for preventing scratches with these glass panels. I will however always use one from case-mate or boxwave because the material very easily cleans off fingerprints by simply sliding your finger over it. Doing this directly to glass often just smears the fingerprints/doesn't give the same results (at least on devices I've noticed). I like being able to clear my screen without needing a cloth or anything for good results.