If airguns arent your thing, but you are stuck at home, look at Colibri ammo from aguila for hour bolt action .22.
This is powderless ammo, and from my 16” barreled cz452 is quieter than my airguns, and in my basement prints 1/2” groups (10 yards)
Assuming you already have a rimfire, this is one choice.
I gotta say, my RWS 34 gets quite a workout these days as well as archery.
I found that Umarex makes an excellent SAA that uses cartriges to hold the BB in place so reloads like a real revolver. Not bad for $120.