your gonna get all kind of answers on exercises of what people think works, but thier gonna give you the wrong answers
anything works, you can build a chest with deadlifts
hers the right answer, you need to concentrate on working that muscle, using good form, isolating it, stay awy from the pressing movements unless they are bodyweight because your only going to be doing them with your shoulders and triceps
(sounds to me like you have the same problem i had)…trust me i know how to fix it
first learn about the pec and its function
then learn how to incorporate that into an exercise
then try to establish the mind-muscle connection
benching 300 will build absolutely zero pecs when your using these muscle to bench that 300 with[triceps, delts, traps, quads, hamstrings, glutes, calves, flexors, extensors, biceps, etc etc…oh yeah and the pecs, you get the point
try an Arnold Fly, use a barrell hugging motion and stay out of the top of the movement when doing this fly, use the botton 2/3rds of the movement
cable fly…get lower than the cables and and bring your elbows and wrists together
or try my fly, i do a decline dumbell Pressing fly(i use so much weight and a tremendous stretch itts impossible to fly the weight up so i press it up in a wide fly arc and fly back down and get the negative
Tip*
From Larry Scoot(do partial 1/4 burns on every set 4-6 reps)
these are the things you need to incorporate if you want a chest
exercise is exercise, just do it , and do it right
forget heavy, and forget weight, just do whatever you need to tear the muscle apart.
if i can tear more muscle apart using a 15 lb dumbbell then you can using a 300 lb barbell… my efforts would surely be more beneficial
just do what i have listed, should not be a problem…pick an exercise and perform it properly
good luck!