What cameras would you recommend, that fit on a pocket and have better image quality than Iphones?

I will be using it mostly for printing photos to place on memory albuns, and maybe like 1 or 2 profile photos...I have a thing that I hate when the eyes are out of focus or blurry in photos, so I think portrait capacity would be important.

Preferably if it's under 600 used and if it has interchangeable lens, even better