CZ Scout is a dandy first 22 if you can find one.
bought a Zastava Remngton model five youth rifle for my grandson. 5 shot magazine, and a single shot follower.
16 inch barrel. amazing accuracy for a "cheap" gun.
These would be my two choices. I bought my 8 yr old a Zastava "youth" .22 and even my 5 yr old daughter can shoot it pretty well.