If you just want a list of good handguns in .22...
My favorite .22 revolver is the S&W Model 18, but those are no longer in production. If you can find a used one, they are tackdrivers, and beautiful, too. They are the .22 version of the Model 15 .38 special Combat Masterpiece.
The 617 has a good reputation, and deservedly so, but I still prefer the 18 hands down.
For semi-autos, I'd be torn between the Ruger MkIII and the Browning Buckmark, as both are great values when you compare quality to price. However, if I could find a S&W Model 41, that would be the choice for me. We used those in competition, back when, and the first time I picked one up I shot something like a 283 out of 300. I could not believe how accurate and easy to use that pistol was.
Cheers,
M