Like many here, the quest for a decent screen protector has been hit & miss at best. Enter ProtectionPro film. It utilizes the same technology and materials as automotive paint protection film, and is custom cut for each device. It has a self-leveling top clearcoat, and is a self-healing product; meaning light scratches will heal themselves when heat is applied.
I had this done last year on my Pixel 2 XL, and patterning just became available for the Pixel 3 & 3XL. My guy just did a full front & rear wrap on it this morning, and I am very happy with the results; to say the least.
I went with the standard clear gloss film both front and back; although you are only limited by your imagination and the inventory of your installer.
More on the product and marketing here:
http://www.clearplex.co.il/faqs/index.html
I am not a seller, employee, representative or affiliated in any way with ProtectionPro; just a consumer who has used their product in the past and wanted to pass along my experience.