I would recommend any Gamo model you are willing to pay for. I paid $129 for mine at The Bass Pro Shop. It goes out at 850fps with normal ammo which is deadly on squirrels. My 9 year old grandson can cover his 3 shot, 30 yd, group with a dime. Also deadly on squirrels.
I think I paid somewhere around 129$ for the Gamo break barrel I have now form Academy Sports. It is definitely a high quality gun, but its nowhere near as nice as that Gamo Whisper that is shown above. I am drooling over that, but it’s close to 300$ -_-;