Day 1, Chest(heavy compounds w lots of tricep commitment and one tricep finisher.
Day 2. Back( only muscle group I do high volume. Twice as much as pushes. Also some medial and lateral shoulder work. HEAVY compounds and a bicep finisher
Day 3 off
Day 4 Legs calves
Day 5. Shoulders, triceps, biceps. Compounds, heavy. Example:
Weighted dips or close grip
Maybe 1-2 set tri-finisher
Superset hammer/reverse (just 1-2 sets as a finisher)
Day 6 and prob day 7 off
Unless I can do another mild leg day. I could use it if my knees could handle it.
4 days with more than 3 exercises per group IMO is all that's needed, especially heavy and to failure. I suppose a 5th day is in order if u can handle legs twice a week. I'm on my legs 12-15 hours a day so sometimes I'm happy to do them once.