TBH just about anything is stiffer than a long travel 32- it’s an XC fork stretched way too far. So you’re starting from a pretty low benchmark and even a Revelation or similiar would be a noticably upgrade, but still, if you want stiff it’ll be worth goign as stiff as you can I reckon
How brawny do you want to go? Mega can wear an old-model Lyrik well, and they’re ridiculously good value now, but it’s a big, hefty fork. I sold my last coil-sprung set for £200 IIRC, and I’d sooner have those than the latest Pikes tbf! They were awesome.
34s are tricky tbh. The early ones weren’t all that good and there’s some from the period of terrible divey CTD dampers (or rather damper setup). I don’t know how to tell the good from bad, I had a 2014 entry level 34 for a bit and it was perfectly decent tbh.