Today there is Supra Endura or there is ...Supra Endura. No choice really as Ultra or the metallic look wouldn't suit what you seem to want. You probably can get Fuji CA in sheets if you look hard but I don't think this will be any better than Supra or even some old Agfa or Konica RA4 but unless you are prepared to be disappointed due to its age I don't I'd bother.

I suspect the key here is to find a film which doesn't give you the sharp( saturated?) colours and films such as Kodak Porta NC might fit the bill.