If he want's a n9ne why not check out the super mega nine .357 sig? I get 1450 ft/s and 585lbs out of a 125gr speer bonded gold dot in my .357
Used 9mms should easily be available for less than 500$
I got a used Beretta 92 for $375.
More important is trying a potload of
pistols till he finds one which fits.
I just got a ruger sr9c it's my be cc I love it got it. For 475 out the door
"You can all go to Hell and I will go to Texas"
For a beginner I would say a Beretta 92, Taurus 92, or Glock 17. All are great guns that kick ass. Who wouldn't want a 9 that holds a hell of a lot of rounds. I have a nick name for them.....
"Hollywood guns" you rarely run out of ammo
Obviously, a good used SIG, Beretta, Glock, etc will fill the bill.
But don't forget the CZ75. Heavy, but one helluva fine gun. and not all that expensive.
"Politics is the art of the possible" Otto von Bismarck.
I have two Beretta PX4 one full size in 9mm. I love the gun, fits my hand perfectly. Good shooter and the 9mm ammo is cheap to run.