Patti,
Are we talking heifers? If so, OCC LEgend and NOrthern Improvement are two good choices. Ali tends to follow the female. If the female is outstanding he will make a nice one.SS Traveler T510 6807 will give you alive one small and grow like a weed. Can't ever go wrong with Gizmo. I had the best luck with Gizmo on a clubby bred Direct Hit daughter. Really made for nice balance. If you bred Heat Wave to good mooma cows shoulldn't be any trouble with milk etc.
Those would be my first choices.