Stevens Transport (Dallas,TX) has a pretty good training program. Some of our drivers started out there.
Be advised though, reefers are a pain in the rear sometimes, require more responsibility from the driver, and the jobs don't pay any better than pulling a dry van. When you factor in the potentially long waits at grocery warehouses, the damaged freight that sometimes goes along with hauling perishable items, it can actually pay less for more work.
I'm not saying don't go that route, but just telling you what to expect from experience.
I currently pull a reefer, and most of my driving career has been pulling a reefer. Count me as one of those who has become fed up with it, and about to move over to the dry van side
