Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (1096.19 USD): CouponsdeFPV
Coupon (1120.55 USD): BGJON8
(CouponsFromChina.com tip: coupon code has to be applied in shop’s 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): BGAlerabat1, Tabby20
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for iFlight Nazgul5 Evoque F5 F5X Squashed X HD 4S / 6S 5 Inch Drone BNF with DJI FPV Goggles V2.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).