Top 3 exercises for each muscle group:

Deltoids (Shoulders)
Overhead Press (Barbell or Dumbbell or Machine)
Lateral Raise
Posterior Raises

Pectorals (Chest)
Horizontal Chest Press (barbell, dumbbells, or machine)
Push-Ups
Dips

Triceps (Back of Upper Arm)
Close Grip bench press
Skull Crushers (Lying Tricep Extensions)
Tricep Pushdown (Rope or Bar)

Biceps (Front of Upper Arm)
Barbell Curl
Hammer Curl (Dumbbell)
Machine Preacher Curl

Forearms
Farmer's Walk
Hammer Curls
Wrist Curls

Latissimus Dorsi (Back)
Pull-Ups/Chin-Ups
Seated Rows
Lat Pulldowns

Trapezius (Upper Back)
Shrugs (Barbell or Dumbbell)
Upright Rows
T-Bar Row (Chest Supported)

Quadriceps (Front of Thigh)
Front Squat
Pendulum Squat
Leg Press
Leg Extension

Hamstrings (Back of Thigh)
Stiff Leg Deadlifts
Leg Curls (Seated or Lying)
Glute-Ham Raises

Gluteals
Squats
Hip Thrusts
Romanian Deadlifts
Reverse Lunges

Abs (Abdominals)
Decline Situps
Leg Raises (Hanging or Lying)
Weighted Situps/Crunches

Obliques (Sides of the Abdominals)
Russian Twists
Side Plank
Standing Cable Twist

Calves
Standing Calf Raises
Seated Calf Raises
Donkey Calf Raises