We use:
Chris Christensen Day-to-Day shampoo and conditioner
BioGroom Protein Lanolin shampoo and Silk Conditioner from Bio-Groom
Yorkie Splash and Shine.
For detangling: Chris Christensen Ice on Ice; Yorkie Splash and Shine Detangling Sheen
For shine: Bio-groom Mink Oil or Madan Brilliant Sheen Spray
We tried, and do not care for, Minksheen shampoo or PEK conditioner but these products are widely enjoyed by other YT members.
Hope this helps