You might want to track down a Kahr in 9mm, either polymer frame (easier to carry) or steel frame (easier to shoot). My wife enjoys the way these fit her hands. She also likes my 3" barreled S&W Model 60, when it's loaded with .38 specials. I do the leg work, and find reliable guns for my wife to "try on", and she tells me what she likes. She's got pretty good taste in guns, so it works out.
If you're introducing someone to a .44 mag, and you don't reload, it might be easier (and less likely to produce a bad flinching habit), if you track down some .44 Russian or .44 Special ammo to load into those magnum chambers, at least until she's used to the gun. I've owned several .44 mags, and the only one that my wife really enjoyed shooting full powered loads in was a Taurus 44 with an 8 3/8" ported barrel. In my .44 mag Ruger Vaqueros, my wife really enjoys shooting 200 grain lead bullets seated over 3.0 grains of IMR Trail Boss in .44 Russian brass. The same bullets, seated over 6.5 grains of Trail Boss in 44 magnum brass, are also very easy to shoot well, and she can shoot for hours without developing a flinch.