Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood).
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGMclaren30W, BGAFF10OFF, BGMBCBLE, BGCuponation10, 13f142, BGHONEY2110, BGb49801, BANGGOODSD, BGCCARG, BG85d5c6, 2022ACTIESNL, Terence, Tabby20, 2203ActiesNL, BG1efeb0, 8Couponsde, MVC8SPRING
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for OnePlus Mclaren 30W WARP Charger with Cable.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).