Shoulder has three parts
Front Deltoid. Middle Deltoid, and Rear Deltoid
*Disclaimer - Most exercises will target more then one section of the muscle but still help optimize growth in specific area.
Free Weight (Barbell & Dumbbell)
Military press (barbell)
Dumbbell Press
Dumbbell Front Raises
Machines
Seated Smith Machine Shoulder Press
Shoulder press Machine
Cable Front Raises
Body weight
Pike Push ups
Free Weight (Barbell & Dumbbell)
Dumbbell Lateral Raises
Machines
Machine Lateral Raises
Cable Lateral Raises
Body weight
Handstand hold
Free Weight (Barbell & Dumbbell)
Rear Delt Dumbbell rows
Machines
Cable Cross overs
Rear Delt Flies
Cable Face Pulls
Body weight
Pull ups (Rear deltoid focused)