CX bikes are fine on mixed surfaces (great on dirt, obv), but do start to suck when it gets very rocky IME. So I wouldn’t set out to do stuff like Jacobs or the Beast – you’d prob be going too slow to trash a wheel (although a puncture is easy), it’s more that they’re just rubbish descents on the CX.
Something like up Chapel Gate from Edale, back to Mam nick and Hollins cross, down to Backtor farm (tricky but overall OK on the cx), along up Jaggers to Hope cross then descend Roman Road at pace to Hope, see how that goes. Pretty CX friendly I reckon.
The Jacob’s ladder loop via Hayfield would be good also, if you just walk up Jacobs, and don’t descend Coldwell clough (awful on the CX). Get on the footpath to the right of Oaken clough asap, and then take that bridleway to Kinder reservoir – smooth riding. The return via Mt Famine, Sth Head, Roych etc is then good CX riding.