If you want to be wider and look better upper body wise, try these:
-Military presses
-Bench presses
-Bicep curls
-Lat pull downs
-Tricep curls
-Wrist curls
Also try the following for a more well rounded fitness profile than just being big and having muscular strength:
-Try running to improve body composition/cardio/lower body muscle endurance
-Try stretching to keep ur large body and muscles flexible
-Try pushups to train upper body muscle endurance