Any of these will function fine,,,
Pick them up and get the one that makes your hand feel all smiley.
Ruger Mk II or Mk III - Luger-ish grips
Ruger 22/45 - Simulated 1911 feel
Beretta U22 NEOS - really slender grips
Browning Buckmark - Standard grips are finger grooved
S&W 22A - Fat grips
If you locked these pistols in a shooting vise,,,
I doubt any one would perform radically better than any other.
The one major difference is in the size and shape of the grips themselves.
That's why I say you should pick each gun up,,,
Determine which grip you like best,,,
Then buy and enjoy that gun.
.