I really like the look of the sig 1911 in .22
The Sig and GSG 1911-22 are the same gun. Either one is a good choice. These are economical, accurate, have a good trigger and pretty good sights. I've been very pleased with mine.
Another high quality yet reasonably priced .22lr is the Beretta NEOS. Not a target gun, but accurate enough and reliable. A good pistol with which to train young people due to it's size and shape.