1×11 junked for not enough range/big jumps between ratios/noisy drivetrain at extremes of the cassette.
1 x 11 is a load of old tosh.
You’re doing it wrong.
1×11 is really no better than 1×10 with an expander to be honest. Unless you’re smashing wide fast descents, then the 10t is brilliant.
The chain at extremes isn’t noisy, and haven’t noticed it on GX, X01 or XX1.
I not sure what ratios and gaps between gears some want, but shifting between three front rings to find a *perfect* gear is just odd.
Anyway – OP, if you want to save money think about a few things…
If you go SRAM cassette, you’ll need a new freehub. If you go Shimano, you can use as is. Although XT cassette weighs more than GX, and is still 11t smallest gear. You can mix SRAM GX or NX in there if you like.
So.. The cheapest option would likely be a Shimano XT cassette and SRAM NX gearing.
Or, you could go 1×10 and just pick some deore kit and an expander.
Most can survive perfectly fine on 32x 11-40t, though you can run a 30t if you’re not feeling particularly fit. That gives you pretty much the same range as a triple with a 24t granny and a 11-34t cassette. Just without a bizarre top end.