I would recommend breaking apart your goals. You clearly like semi-autos, and that is great.
However, for a home defense, night stand gun for Mom, a revolver might make lots more sense. There is less to learn, and it's as easy to use as a spoon.
That's how I started a couple years ago (a woman in mid 50's here), and now I own and shoot everything from a Ruger MkII and a S&W 617 to a Desert Eagle .50 and a S&W 500.
If you want to see if a revolver is loaded, open the cylinder. No dropping the mag then racking to empty the chamber. Pick it up, point it and pull the trigger. If it doesn't go off, pull it again. No racking or fussing with buttons.
People complain about double action revolver triggers, but I promise you there is no trigger out there that will keep your trigger pull more honest than shooting a revolver DA. If i have shot nothing but semi-autos for awhile, and i see my groups starting to open up a bit, I just get out an 8 shot revolver, load fewer than the cylinder will hold, spin it, and see what happens when I pull the trigger on an emply chamber. If the barrel dives, then it's my bad trigger finger and I work on it til it's fixed.
I would recommend a K or L frame revolver with a 3 or 4 inch barrel - like a Model 10, 19, 66, 686, and the like. (I am a S&W fangirl, so others can chime in on other brands). I own all of the above, and honestly, the buttery smooth trigger of my old model 19 compares very favorably with my performance center 627 N frame.
Note that everything i have listed is chambered in .357 mag. (That is still the most versatile round out there, in my opinion.) However, each can be practiced with .38 special, which is an easy shooting round, for sure, and nice HD ammo in .38 special is available, too. .38 special is more expensive than 9mm, but not hugely so, and deals can be found on the net. I ended up learning to reload, too, so that just adds to the enjoyment for me.
Grips are important, and there are more choices on a revolvers since you are not limited by the idea that your hand has to be wrapped around a magazine. The S&Ws i mentioned above can be gripped either large or small, round or square, rubber or wood, without a lot of fuss.
If you insist on semi-auto in a 9, then you might consider a single stack 9 in the S&W Model 39 family. I have a 39-2 and it fits my hand like a dream, and i shot it well the first time i picked it up. Mags can be had that hold 9 shots. THere are other, newer versions of it, but I mention it because the grip shape is so very nice compared to some of the newer "blocky" designs.
I have never been a glock fan since they just do not fit my hand, but I also own a 92fs, cz75b, couple of hi powers, pm9, m&p9, 229, and a couple of others. I like them all, but the 39-2 fits my hand the best, hands down if you will pardon the pun!
Having said all that about the 9s, though, I still recommend starting with a good old revolver.
Just two cents worth from the womanly perspective.