Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (37.02 USD): BGMatt2022
Coupon (37.02 USD): BGToys8
Coupon (37.02 USD): BG8OFFCOUPON
(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): hoNEYbGdeAlS, BGRCT10, BGJUNEGSG9, Cuponation9, BGGutscheine
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for GDW DS296X 10kg 60 Degree Metal Gear Digital RC Servo? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).