I would suggest getting a d-brand skin for the Pixel 2 XL. It covers the entire back, sides, top, and bottom. Got the matte black skin myself, it feels almost the same as naked.
Also got the Dome Glass screen protector and it is by far the best screen protector I've ever had. There's no dot matrix, it covers the entire screen, and does not peel up / bubble on sides at all. I am buying this brand for every future cell phone I get.
This combo of screen protector + skin is so awesome and eliminates all of the bulk.
I agree there are really great ones and really bad ones, the difference is striking. Rumor I read was phones manufactured December 2017 onward have improved. Mine is totally uniform in terms of brightness and color and has very minimal blue shift, just like the good ones I played with at the store. It isn't iPhone X quality (when you get a good one) but it is a stellar display. I've seen many iPhone X displays that pale in comparison to my P2 XL. QC issues aplenty with every company.
I'm also eyeing the standard S9 because I too am an addict...