Re: 3 humbucker strat
I’m assuming you are only referring to SC sized humbuckers for strat… in that case, the CRn/VRb/CRb or the CRn/VRb/lil screamer are both great combos. The CRn/VRb (neck and middle respectively) is my favorite neck and middle strat combo.
Wiring would be like any other 3 SC strat (since I don't recommend splitting the rails pickups).