That said, first things first-go to a reputable handgun trainer (check out NRA.org for a list of NRA certified instructors in your area) get a basic course in handgun-(from your post that said you shot low/left w/ a glcok-probably more your grip, stance and follow-through than the gun itself)
Next-what is the primary purpose of your choice of handgun? At home self-defense, concealed carry, casual plinking, big game hunting, etc (yes, all are niches that can be and should be filled with a dedicated system geared to that purpose!).
Get the training first, shoot the trainers handguns (usually they have a diverse selection. If you attend a course with a other students-try what they have, shooters are probably the most friendly group you'll spend time with, in my experience!
God Bless
NRA certified rifle and pistol instructor, MO CCW Instr, etc.
Personally, I’m looking to buy a 9mm Walther for about the same reasons.