I need a good radiator shop Cinti, Oh area

Check the net or even the yellow pages. Call a few, see how long they gave been doing that type of work. Not how long the shop has been there. Ask for references and check them out with the BBB. Ask around at the parts store and see who pops up. Try car clubs and talk to the guys that run a race track of any kind. This kind of word of mouth is where the really good and bad ones tend to show up.
Good luck. Kept us posted on how it goes.
Mike