Push-ups are a bodyweight workout that work on your chest and core muscles while requiring no equipment and can be performed anywhere.
The dumbbell flyes are an excellent exercise that drastically isolates the chest muscles and focuses primarily on developing those muscles.
The dumbbell chest press is a great exercise that allows freedom of motion and part of many weight lifting and bodybuilding programs.
Barbell bench press forms the cornerstone of any weight lifting program that wants to build strength in the upper body using a compound movement.