I have some new OTG cables from Amazon that I can't use. Nice quality, braided cables. Save a few bucks, I'll mail them USPS for $10. Just can't get my Moto Z phone to work (unsupported), so I am using an older phone that does not have USB C.
USB Type C to USB 3.1 Adapter, iSeekerkit 2Pack USC-C Male to USB Type A Female OTG Cable for Samsung Galaxy Note 8, Galaxy S8 S8+ S9, Google Pixel, Nexus 6P 5X, LG V20 G5 and more
https://www.amazon.com/gp/product/B07CKQLPJP/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
RCGEEK DJI Spark Type C Cable Right Angle for DJI Mavic Pro, Black
https://www.amazon.com/gp/product/B0747RSPWJ/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
USB Type C to USB 3.1 Adapter, iSeekerkit 2Pack USC-C Male to USB Type A Female OTG Cable for Samsung Galaxy Note 8, Galaxy S8 S8+ S9, Google Pixel, Nexus 6P 5X, LG V20 G5 and more
https://www.amazon.com/gp/product/B07CKQLPJP/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
RCGEEK DJI Spark Type C Cable Right Angle for DJI Mavic Pro, Black
https://www.amazon.com/gp/product/B0747RSPWJ/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1