Everyone on here will all be really opinionated about make/model of brakes mate! Lol
If money is a factor keep an eye on the for sale forum. Upgradeitus is endemic on here so there are always lots of brakes for sale generally. 😀
Personally… I would go for some SRAM Guides. That said, they may not mate up to your setup if your running Shimano triggers?
I’m no expert on that though (or much else…) and I’m sue you can make sram and Shimano play nicely if required! 😀
Lots of very, very knowledgeable guys on here that will also be able to offer their opinions mate.
Many people love the XT’s and hate the Guides… AND visa-versa! 😀