Over the years (even before concealed carry was legal) I have carried an assortment of firearms, every thing from a Desert Eagle .44 automag to a Colt .25 auto. At first I thought BIG was best, and still think big is good but often big is uncomfortable to carry and not easy to hide when wearing jeans and a T – shirt.. For many years I carried a J Frame Smith in .357, a fine gun but still a bit on the heavy side. I also tried the Sig 230 and 232, great guns but still HEAVY. When I picked up my first PF-9 I knew it would be my primary carry gun, it is light, easy to conceal and a very reliable little piece of work. I added a CT laser sight and carry it in a pocket holster, 99% of the people never know it’s there. Sometimes when going to “the big city” I may pack my Sig in .357 that’s only because of the magazine capacity, its heavy when fully loaded but provides sufficient firepower if needed in some of the high crime area I might visit.
For most concealed carry I think the PF-9 is an excellent choice, as said, it’s reliable and reasonably priced therefore that’s what I would recommend for you.