Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (12.19 USD): BG85d5c6
(CouponsFromChina.com tip: put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGHONEY2110, 13f142, BANGGOODSD, 6GSGIT
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for Baseus 66W/6A 40W/5A Zinc Alloy USB to Type-C Cable 1m.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).