Aliexpress
Click here… to search for T-BAO TBOOK X8S 8/256GB J3455 Laptop on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
Coupon (339.49 USD): Email5
(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): BGTB9021, Wholesale20, aff7off, BGTB5237, BGTB55237, BGX8S5237, BGBFCR28, BGCITYADS2019, bGhOnEy10, BGAFF7OFF
(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 X8S 8/256GB J3455 Laptop.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).