Reddit mentions of UUDCZ Grooming Comb, Dematting Tools With 2 Sided Professional Slicker Brush, Undercoat Rake For Long-Haired Dogs, Cats, Breed Pets（Blue）

It depends on what you need. Honestly, you'll probably want a few brushes for different things. Slicker brushes are helpful in keeping the coat from getting matted (especially around the ears); a comb is good for getting out matted fur; and a regular pin brush is what I use for daily brushing. But if you are in need of a deshedding brush, I highly recommend getting an undercoat rake! It gets out at least three times as much hair as any other brush we have tried in a fraction of the time. This is the one we use: https://www.amazon.com/UUDCZ-Dematting-Professional-Long-Haired-Pets%EF%BC%88Blue%EF%BC%89/dp/B07C6ZYYL8/ref=sr_1_33?ie=UTF8&qid=1536762893&sr=8-33&keywords=undercoat+brush+for+dogs+two+side

Seriously, it was a game changer for us.