Well if i where u i would want to shoot a few different guns befor u decided to buy one you have never shot... I carry TLE custom II 45.. Love the gun so much i have two of them. Single stack tack mag 7+1.... People say go with a small gun 380 9mm on and on... But it's really about the holster, there is so many different one. Boot small of your back inside waste band hip cross draw shoulder ones with different canter.. My 45 is full size and i have a holster that has forward canter. If u seen me walking around u would never know i was carrying...
Another really important thing people dont talk about is how your holster holds the gun, and what kind of release it has. Personally i love the thumb break holsters quick and there is no messing around with straps or clips...one push of the thumb and the gun is ready to be pulled.. Also the back strap blocks the hammer from striking the fireing pin....