You're unlikely to see a major difference between a Nikkor or Schneider or Rodenstock non-APO lens and an APO lens unless you are making BIG prints. Then the APO lenses shine because they will keep all the color wavelengths focused at the same plane - a 5x7 or 8x10 print is much less likely to show that difference in focus than a 20x24 print is. If you are not getting the color you want then I'd look at
A: your film and your paper processing (is your chemistry fresh and the pH balance correct, your process times are consistent, your processing technique consistent, etc), and
B: the film and paper you are using are fresh and properly stored until processed.
Also, is the paper and the film you are using a good match for each other? This is less of a choice now than it used to be, but back in the day, Kodak sold RA4 paper in three grades - portra, supra, and ultra, and then there was Fuji Crystal Archive and Agfa color paper too, and Cibachrome/Ilfochrome for color transparency. These days there's Fuji Crystal Archive, Kodak Endura and Kodak Royal, and that's about it.
A: your film and your paper processing (is your chemistry fresh and the pH balance correct, your process times are consistent, your processing technique consistent, etc), and
B: the film and paper you are using are fresh and properly stored until processed.
Also, is the paper and the film you are using a good match for each other? This is less of a choice now than it used to be, but back in the day, Kodak sold RA4 paper in three grades - portra, supra, and ultra, and then there was Fuji Crystal Archive and Agfa color paper too, and Cibachrome/Ilfochrome for color transparency. These days there's Fuji Crystal Archive, Kodak Endura and Kodak Royal, and that's about it.