The coolest wendler routine is the main lift template followed by german volume training isolation exercises.
There was a judoka who had a before and after picture where he just ate everything and the transformation was awesome. I think he did about 8 cycles before completely stalling on every lift.
It was like
Overhead Press-5/3/1
Lateral raises-10x12-15
Deadlift-5/3/1
machine rows-10x12-15
Bench-5/3/1
Incline DB bench-10x12-15
Squat-5/3/1
Squat to box-10x12-15
He gained like 60lbs, a lot was probably fat but He was training in judo and doing sprints so exactly how much I am not sure.
If I ever do 5/3/1 I would probably do something like that.