Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
Coupon (407.95 USD): BG589b2e
(CouponsFromChina.com tip: apply it 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): Drones6, BANGGOODSD, 6GSGIT, CouponsDE, BGRACING1125, 00c906, BGGAL8, BGJON8, BGAlerabat1, Tabby20, CouponsdeFPV, 8Couponsde, BGToys8, BGMatt2022
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for GEPRC CineLog30 HD 126mm 4S Drone BNF is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).