Dual position are set at the travel they are AFAIK.
Fox 120s are great – best feel, best setup, stiff, but you need to keep on top of the servicing to keep them wear free – so if you happy to drop the lowers once a month or so then they’re you best bet. Plus if you fit SKF seals, they’re be buttery smooth. (I’ve had F100, F120, 140 FiT Kashima)
Rebas would be my next bet, service intervals are less, they have better small bump tolerance than Fox, but I don’t think they feel as nice overall. (I’ve had Reba Race, SID Race, SID Team, Sid RLT ti, Rev Race)
Magura… I’ve had some 2010 Thors, and they were a pain in the bottom to set up, and never felt right. Personally, Reba or Fox. And go with QR15 or Maxle light.
Given the years you’ve given, I’d go brand new and have warranty – well worth it with forks, I’d avoid secondhand to be honest as most people dont know or understand how worn their forks are.
Good luck, I love my DW Link Flux… best bike i’ve ridden by far, I’m running Fox 120 RLC FiT Kashimas with SKF seals 🙂
WRT DT Swiss above… the service interval is huge – 200 hours i think, so they’re fit and forget. My issue with them is zero small bump tolerance, as they don’t sit down in their travel.