Injectors maybe?
That would be my first option to explore.
But if you are happy with current HSS Strat, I guess Solo would be okey option.
Edit:
If it helps you, I've heard somewhere that Injector Bridge is like DiMarzio Chopper, somewhere around that sound.
And I've heard Chopper in all 3 positions, on different Strats ofc. It was a really cool pickup.
So I guess .... 3x Injector Bridge would be okey also.
Edit2:
It would be cool to hear Chopper vs Injector Bridge comparation.
But if they are similar in sound, as that person claimed they are ... I would be all over it.
I guess 3x Solo or 3x Injector Bridge is okey option to explore.
Ofc don't buy them just cause I said something. But if you menage to try them for free, do it instantly.
But 3x Chopper Strat would be amazing, for sure I can confirm you that.
And if Injector bridge is anything close to Chopper, it would be cool also.
It's standard bridge pickup, and it sounds cool, in middle is usable. On neck is okey for gainy lead sound.
But it's a rail, and if Injector bridge is anything close to it, it would be cool Strat.
I've really heard somewhere that Injector Bridge is like Chopper alike ... so ... I didn't heard Injector bridge in person.
But Chopper is very cool pickup.