"Not knowing" is a solvable problem. A couple of years ago, I was on the hunt for a polymer 9mm. As is my usual way, I researched the everloving snot out of them before I finally bought my G19. Accordingly, I started a thread called
Spats searches for a 9, phase 1. Our TFL members, as always, provided me with lots of good information about the pistols on my list, as well as some suggestions. If you're interested in the other polymers, start there. The thread's a couple of years old, so you'll want to double-check the information. (For example, someone suggested the Caracal, but it was later recalled....)