In Beyond 5/3/1, theres a template called the "5's progression." Its basically 5/3/1 but you just do 5 reps for all the work sets instead of building up to a set of amrap. Same percentages over the cycle.
Then in the Powerlifting book there's an off season Mass Building Template. It takes off the amrap set of 5/3/1 but puts in a drop set of 10-15 reps for everything but deadlift. Same structure for the 4 movements other than that. Then theres a bit more volume for the assistance work, which is the focus.
To give an example, Press day has 5.3.1 for OHP with a drop set 10-15 reps on the last set. then 5x10 dumbbell shoulder press, 5x10 barbell curl, 3x10 superset lateral/rear delt raise and some conditioning.
I would switch out the 5.3.1 on the big movements for 3x5. Its all Jim's stuff, just wonder what you guys think.
For some background, I've done 2 cycles of simplest strength after a year long medical hiatus. I'm getting back a lot of what i had strength wise, obviously, but i feel like this 5's/mass might strike a better balance for me.
If its a bad idea lmk!