The best lower chest exercises are limited because of the angle that you have to be in to target the muscles of the lower chest. Many people are unhappy with the appearance of their chest and want to change it.
What you think might be the best chest workout routine for your body might not be exactly what you need to look better. Chest exercises for men need to focus on building mass while shaping the chest correctly. The lower chest is the easiest and fastest to build mass.
You need to make sure that you are not doing a lower chest workout every time that you workout your pecs. A pec workout has to be balanced to develop a well shaped chest. You need to focus more on the upper pecs than the lower because they are much more difficult to develop.
The best exercise for the lower chest is the decline bench press. You can lift much more weight when you are at a decline so you will need to adjust the weight accordingly.