We carry stainless steel derailleur and brake cables from quality manufacturers–usually Shimano and Jagwire. I’ve never been able to discern that one company’s inner cables are better than the others and buy what is available rather than worry about the “right” brand.

Derailleur cables have Shimano/SRAM/Anything but Campy heads.

Brake cable have mountain and road heads, just cut off the end you don’t need.