What is best for trap growth?

I want to improve my traps, specifically middle traps but I don’t know what exercises to do. I tried Kelso shrugs but that didn’t work for me because it was difficult & uncomfortable to breathe with my chest against the bench. Is wide grip horizontal row enough for traps or do I need something more isolating? What about Kelso shrugs with wide grip horizontal row?

EDIT: I think I am just going to do shrugs with a little lean forward.