Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
Coupon (55.38 USD): 6GSGIT
(CouponsFromChina.com tip: put item in your cart and apply coupon code there 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): BGDEHS012, PICODICOM, BGBFAFF2019, BGCITYADS2019, bGpAnDacHeCk, BG9NY, 2020CNY, BGVDay10%off, bGhOnEy10, BGHOMEAPP13, BGHOMEA13, 13f142, BGCuponation10, BGwhielabel, BG10OFFAFF1
(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 Deerma DEM-HS012 Pink Steam Iron? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).