Aliexpress
Click here… to search for ThundeRobot IGER E1 Laptop 15.6 inch i5-10210U 16/512GB on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Hong Kong. Well, there is one coupon available right now.
Link: Banggood product page
Coupon (763.59 USD): BG8ReviTrage
(CouponsFromChina.com tip: just apply this code 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): BGIGUE1, 6GSGIT, BGEREUE1, BGIGUUE1, BG3145b5, BGTHEUE1, BGUEIGE1, BGTEUE1, BGITTHE1, BG5229ec, BGb0ad7e, 2022ACTIESNL, BGc89eeb, BGa052e7, Terence, BGf666d9, 2203ActiesNL, BGTHIGER, BGaf0d04, BGQHTHE1, BG196fca, BGf91b46, BG20a2e1, BGd5024f, 8wEbgaInS5, hoNEYbGdeAlS, BGd344f0, BG3c516b, BGJUNEGSG9, BGf498a3, BG4717c3, 9OFFSUMMER, Cuponation9, BG590cd4, BgGoodie9
(there’s a little possibility that old coupon will work)
Price history and price alert
Here is price history (for all/most countries) for ThundeRobot IGER E1 Laptop 15.6 inch i5-10210U 16/512GB.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).