We use Biogroom Oatmeal Shampoo and Silk Creme conditioner most of the time. The conditioner has saved my boys' coats from destruction.
We also like:
Chris Christensen shampoo and conditioner
Espree Show Dog Shampoo (Petco)
Isle of Dogs
Pet Silk
Vellus
I use a little bit Pet Silk silk serum for detangling. It adds a nice shine too.
I like Vellus anti-stat for brushing. Many people here love Chris Christensen Ice on Ice.
Many people like Cowboy Magic for detangling. Or simply corn starch (apply dry to dry hair). Anything that gives the hair a little "slip" to help detangle.
I use a comb with a steel tail to carefully detangle, an ISINIS brush (Amazon), pin brushes (nothing with balls on the tips to damage hair), and steel combs.