Rotate all of the above suggestions using some as your ME exercise, assistance and some for your DE day.
On ME day do some full range benching (Regular benches, floor presses) working up to a 5RM or 3RM rotating every 2 wks.
for main assistance do 4,3,2 boards, pause, close grips, pins at chest level.
On your DE day do Dbell Presses, Military Presses, Speed Benches, rotating every 2 wks.
Do lat work, Pulldowns and rows, rotate whenever it feels stale.
Upper back, band pull aparts, face pulls, bent raises, shrugs.
You need to experiment and see what works best for you. Good luck.