My wife first carried a Bersa. Good shooting gun. Then she decided she wanted to pocket carry, which the Bersa was not good for (the CC version is, though) so she got an LCP. Then we saw a Sig 238 at a gun show and she fell in love with it. I liked it so much, I got a 938 for myself, which is my EDC now. For a long time her favorite range gun was a full size Witness 9mm, polymer frame, but her favorite range gun now is a CZ97, 45acp. Go figure.
Whatever you do, let HER make the decision. If possible, find a gun store/range that rents guns and try before you buy. TSA has a good selection, your basically rent the caliber. In other words, you rent one gun in 380, you can keep swapping out guns as long as they are the same caliber and only pay one rental fee. They apply the rental fee towards the gun if you decide to buy.