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 (49.99 USD): 13f142
(CouponsFromChina.com tip: apply it 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): BGLVZCJ, bGhOnEy10, bgshOOp10, BGHome15%, BGHOMEAPP13, BGHOMEA13
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi LIVEN ZCJ-SM130 600W Frying Baking Sandwich Waffle Machine? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).