Best thing to do is hold all of them and see which one fits you the best. I went thru 4 Holster before I found one I like. If you have friend’s with guns. I advise that you shoot all of their pistols to see which best fits your hand. CCW (IWB Holster) isn’t the most comfortable way to carry a pistol by far, but it does keep it concealed. If you live in a state where it stay’s cold and you have to wear a l jacket often, then I would recommend getting an OWB( Outside Waist Band Holster) . They are more comfortable. I carry a G19 Gen 4 9mm. I love its weight and mid size frame, It goes inside of a T-Rex Arms IWB holster. I also have a OWB holster for it as well. My state (LA) is an open carry state, so I mainly open carry. ******FYI , If you apply for CCW thru your local state police, then send the minimum payment with minimum amount of years. If you get denied your CCW, they will keep the entirety of your payment. ******
P.S. Your trigger finger is your safety.