Browning Buckmark, Ruger Mark II Target or any Ruger II, III pistol shoots well. My last .22 purchase was a GSG 1911 .22 pistol from Ed and it shoots equally as well as the Browning and Ruger. Sig also makes a nice 1911 .22 pistol. I’m seriously looking at one of the M&P .22 pistols the Smith and Wesson came out with. They get really good reviews and see to shoot everything really well except the cheap Remington bullets. Looks like a real winner for S&W.
That being said if I was only going to buy one .22 auto it would be either a Browning Buckmark or the Ruger auto.