The Jazz Bridge is surprisingly good in strats, paired with vintage singles. It sounds great for cleans, but also does heavy tones nicely. Don't worry about it being brighter than some other pickups, because it has a beautful voice and you can back off the tone to dial it in perfectly. I think it's even Seymour's first choice for an HSS strat, although Fender went with Pearly Gates for most of their HSS strats.
My other choice would be a 59B. It's also got a nice voice in a strat, and is very versatile.
When you go hotter than those, the volume gap between the humbucker and singles widens.