Amazon. I already had the Micro-USB to Female USB adapter, but I got the USB-A to USB-C cable on Amazon.

The link is: https://www.amazon.com/dp/B01CZVEUIE/ref=cm_sw_r_other_apa_i_j0fbEbY5TTDH1

Of course, if you don't have a phone with a USB-C you'll need to find a different one.

For the future (0.5 ft. cord): https://www.amazon.com/dp/B01CZVEUIE?ref=ppx_yo2ov_dt_b_product_details&th=1