On CRC they have the brakes without discs, but don't say which discs you need to fit the brakes. Any help appreciated.
Yes I know its sunday and I should be out riding…

If you want shimano you can fit either SLX but they are only Center Lock, otherwise its LX\XT if you want 6 Bolt, i cant comment if anything else would be suitable, i just used the XT ones.

You can use most 6 bolt ones. i have tried Hope floating ones and aztec ones but prefer the feel of the xt 6 bolt ones. (this is xt brakes but the calipers the same ish).