I can recommend the beartooth adjustable comb kit. I have two or three of them, I use them on some of my shotguns.... your eye is the rear sight.
I tried one of those and hated it. As with any wrap-around pad, it also makes the comb wider which can push your head off to one side rather than just raising it. It also was not very consistent and stable, as the layers of pad stuffed inside the neoprene sock could shift around. I would not buy another.
There are several kydex adjustable cheek pieces available on Amazon and elsewhere as a kit. You do have to drill holes in the stock though, like erich's first picture above.
