Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. I don’t want to misguide you about the price. I don’t know if it’s good, because I don’t have enough records in my database…
Link: Banggood product page
Coupon (314.99 USD): Sports23q1
Coupon (328.99 USD): BG589b2e
(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): BG369949, BGfc8a9a, BGa61f2e, BG2c8be8, BGissam269, BG073996, BGccadc5, BGcf8f88, BGc363fd, BG8OFFCOUPON, TTBLACK5, JanBGCoupon8
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
There is only one database record (it was for 219.99 USD), so you can’t see price history chart.
You can set price alert (for Banggood).