I was going to focus on ME OH pressing and then perform heavy chest work for straight sets in exercises such as DB bench variations, dips, etc. ... perhaps 4x6-10 range with a fair 2-4 min rest period.
I injured that shoulder a few years back during a heavy bench cycle when I hit my PR of 135kg on the bench. Was training WS4SB3 style... no sudden pain - just one day realized that it was a little tender. Rested a week and tried to train again but it just got worse when I tried it again.
I spent a long ass time going between doctors and a couple of specialists with minimal success. NHS doctors refused to diagnose it as something other than a "sprained bicep" despite my protests (and the fact that rowing/curling caused no discomfort!). I was even told to take paracetemol to "speed up the healing process" and to stop lifting weights.
In the end after trying to work around the problem I simply had to let the area rest for maybe 3 months before I could even do a pushup without pain.
Could not afford a private doctor so visited a sports therapist who had some good reviews. This chap diagnosed it as something related to where my pec hooks across towards my shoulder (I forget specifics!) after a couple of months of bi weekly sessions. Massage/myofascial release/etc. helped a little but ultimately it came down to me having to rest it for a couple of months before I could perform upper body horizontal pressing (and bizarrely vertical pulling also).
I have always enjoyed benching - one of my stronger lifts!