Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. There’s only 1 record in my database, so I have no idea if the price is OK.
Link: Banggood product page
Coupon (27.25 USD): BG00c906
Coupon (27.25 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): BG7bb26b, 8BGwbg2204, tRaDetRaCKeR, pROMo8cuPoN, BGJUNEGSG9, Cuponation9, 9OFFSUMMER, BG8ReviTrage, BGcoupon8off, BGGutscheine
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
There is only one database record (it was for 18.99 USD), so you can’t see price history chart.
You can set price alert (for Banggood).