@cas several years ago a google engineer released some review on usb-c type plugs/cables that revealed just how many of them were faulty, seemed incorrect/bad resistors being most common. google engineer Benson Leung published a list of ok cables/adapters on his google+ page which ceased to exist recently and someone else created this posting of his findings,
google sells some models on their store but they are pricey. at least much more than in 2016. i bought off that list on amazon and spent ~$12US for a kit that had a usb-c male to usb-a male cable [for attach a android phone to win 10 box] plus a usb-a female to usb-a female to create the needed usb-a female host port for OTG. ebay has some also, usually cheaper.