This is my setup. I use this as my primary charging setup. My charger that came with the G6 stays in my truck just in case I need to charge on the go.
Anker PowerLine USB-C to USB 3.0 Cable https://www.amazon.com/dp/B01E9WMXYK/ref=cm_sw_r_cp_apap_QD21dq8xQnXRx
Quick Charge 3.0, Anker 18W USB Wall Charger https://www.amazon.com/dp/B016LO811S/ref=cm_sw_r_cp_apap_4YfeFqNztkZAp