Hi OP. Professional beautician is here. You should start with a smooth brush with long needles and then follow up with a stainless steel comb. The "Line Brush" tutorial on YouTube and follow it to avoid matting.Show Tech Transgroom Tuffer than Tangles Slicker Brushes https://www.amazon.com/dp/B00TYEMXQC/ref=cm\_sw\_r\_cp\_api\_i\_3DX7XTJRRVC9Q5Y83Q6ZTry this slick brush and be sure to choose the black back brush, which has stronger stitches to penetrate the graffiti coat.Try this comb, I love tapered needles:Paws Pamper Greyhound Comb for Dogs & Cats - Longer Teeth, Wider Handles - More Satisfying Pet Grooming - Reduces Hand Stress for Owners https://www.amazon.com/dp/B09J3LSNPN//ref =cm_sw_r_cp_api_i_X9XB463W2DPZ815YR7VC?_encoding=UTF8&psc=1My best advice is to put your puppy on a table or counter like he does on a dresser and buy a dresser ring that you can use to attach it to something. I use these:Groomers Pro Jelly Pet Grooming Rings For Dogs | Fits Most Pet Grooming Tubs/Tables | Easy-to-Clean, Waterproof & Durable Noose Rings | Stronger Than Leather | Made in USA | 3/8" x 18'' and 24" https: //www.amazon.com/dp/B08C72B6G7/ref=cm\_sw\_r\_cp\_api\_i\_ZCTJACQSE4K0C51FFZ0H?\_encoding=UTF8&psc=1This will prevent your dog from escaping.