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 (116.87 USD): BGFT666
(CouponsFromChina.com tip: this code has to be applied 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): BG8ec602, BG8fcd54
(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 110V 200W Fitness Vibration Machine? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).