Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (818.79 USD): MVC8SPRING
Coupon (827.69 USD): 2203ActiesNL
(CouponsFromChina.com tip: this code has to be applied in your cart 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): BGAlerabatLP, BGDERET11, BGT11UU, BG329b62, BGITTB11, BG4d999e, BGHUT11, ADMITAD2212, 2022ACTIESNL, BG506eb0, Terence, BGbcf1af, Tabby20, BG1efeb0
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for DERE TBOOK T11 Laptop 15.6 Inch i7-1165G7 16/512GB? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).