I agree with the one poster you may have a good gun already if they have screw in chokes.
MY Personal favorite and the one that I would say to get is one that I personally own a Remington SP-10 10 ga with thumbhole stock and camo also comes with a briley choke tube. You will hear about how heavy they are they weigh 11 lbs but are really nice as far as recoil goes I have owned 12 ga guns that have more recoil than either of my 10 ga guns. I shoot a browning bps 10 ga as well with slugs and 2 1/4 oz turkey loads.
whatever fits you the best just don't fall for the myth that the 10 will have more recoil than a 12 with equal loads this is wrong. Brownings bps 10's are a good choice they make an nwtf model as well.
good luck and let us all know what yo decide on
jbaham