Hello @SkipFrom21 ,
When it comes to screen protector, the best is the one that comes with the phone(from factory and out of box). In case you need a replacement, I would suggest you to contact your local and nearest UbreakIfix store or contact 1800-Samsung for replacement. Any other screen protector may result as loosing sensitivity of the screen or fingerprint working in and out.
I hope this helps out.
it all depends if you want a glass screen protector or a screen protector that can bend for deep scratches. i have zagg shield on my s9+ and i dropped it plenty times already, still no cracks and you also have the function to increase the sensitivity on the screen so theres no delay even with the screen on.
I also use the screen protector that came with the phone and it works exceptionally well, I've dropped it multiple times and there's only one very unnoticeable crack on the screen
A great screen protector is the one that comes with your phone. However, the AmFilm tempered glass screen protector is also great and definitely protects your device!
I've always used zagg never a problem, white done is supposed to be great but complicated and you have to do it yourself which I won't do, zagg you can get at must carrier stores, best buy it zagg kiosk if you have one in a mall and they will install for you.