Aliexpress
Click here… to search for T-Bao Tbook X7 PLUS i7-7700HQ 16/512G GTX1060 Laptop on 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 (839.99 USD): BGTBX7SP
Coupon (839.99 USD): BGTBX7CS
Coupon (1079.99 USD): Wholesale20
(CouponsFromChina.com tip: you should apply the coupon 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): BGX7P2, aff7off, affiliate6, BGBFCR28, BGTBX7, BGCITYADS2019, BGTBX7P, BGX7P8, BGX7P9, BGX7K1, BGTBX7K, BGTBX7HQ
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for T-Bao Tbook X7 PLUS i7-7700HQ 16/512G GTX1060 Laptop.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).