It is impossible to answer this question without knowing more about your daughter.
Some good info to provide us would be:
-How old is she? If she's 15, I guess this is a target pistol and a 9mm might be pushing it for a 15yo. If she's 21+, I'd assume this is a carry weapon.
-Is this for target practice or carry?
-If for carry, is she interested in open carry?
-What's her/your budget? For the gun and for ammo. 9mm is great for those on a budget. But if she needs a pocket pistol and can afford .380 or .32, that'll help to know.
-Has she ever shot 9mm before? If so, how does she handle it?
-Are there any gun attributes she doesn't like? Loaded chamber indicator, manual safety, metal or polymer frame, semi-auto or wheel gun?
-Are there attribute she does? Interchangeable backstraps, extended slide release, laser grips, exposed hammer/concealed hammer/striker fired?
-Are ambidextrous controls important? I'm a lefty, so that's something I think about.
I realize if she's not real familiar with pistols you won't be able to answer all of these, but answering just a few of these questions would at least narrow your options down from about a hundred to at least 10 or so.