width
it thickens up with heavy rows
im quite strong on pull downs tried wide and narrow but not much success
rows are vital for thickness and many different bars,and grips to try,,,iusually do 2-3 rowing movements per wkout
chins start bodyweight followed by 2 added weight sets.
bent over row either hands over top or reverse grip some people either like or hate it this way but it does pull pressure to bi's/elbows so if either of these are giving problem ,due the overhand grip instead,,but reverse allows a bit more weight used and i feel signifigant pump/feel from them
low pulley row as chaos said to chest or stomach and for wider version use wide lat pulldown bar instead of small pulley bar.
one arm row dumbell no explanation needed
standup pulldown/pullover,,,use cable crossover attach large bar to top ,,slight bend at waiste and pull weight to upper leg and tuck in hold there and back to above shoulder height ,,its like a standup pullover .all add width and thickness i use all these in some form,,,