If I had EMG’s equipped I’d definitely pop in a Fishman just to see. They can accept the EMG quick connect but the downside is you can only use the one voicing. But that’s definitely a good way to test to see if it’s worth rewiring for them permanently.
If he is set on Passives, I was very impressed with Balaguer Feral. The EQ on them is a bit heavy but once I dialed my amp to compensate the tone was glorious. Full, open and still brutal.
TBH they replaced Bareknuckle Miracle Man. Either way, whatever he decides I am more of a fan of medium output pups vs. super hot. Just sounds better to me.
I guess for a top 5 I would be looking at Balaguer, Lower output BKP, Arcane a USED Motor City or I’ve been wanting to try Peters pickups.