The Security 9 is $350, a little large for concealed carry, but a good gun for not a lot of money.
Did a quick search and got this: https://ruger.com/products/security9/models.html
I like the (old, they don’t make it anymore) Ruger P85 MK-II and have no problems with CCW in a shoulder rig. I can carry that with 17+1 loaded plus 2 35 Round Mags under loose shirt or a jacket without “printing”
We got Mama a SCCY CPX-2 NIB at the local Pawn Shop for $200
https://www.sccy.com/product/cpx-2-tt-9mm/
and She loves it.
I prefer My 1911 7+1 and 6 Mags (7 Round) and it all fits nice in the RoloWalker Seat. I like the extra power. John Browning was a Genius.