Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Camera: Caddx Ratel V2, Brand: GEPRC, Propeller: 3045*3, Name: Crown, Motor to Motor: 156mm, Recommend batteries: 4S 1300~1550mAh, Weight: 281Grams(without batteries), OSD: BetaFlight OSD w/ AT7456E chip, IMU: MPU6000(SPI), VTX: 5.8G 25~600mW VTX, Frame: GEP-CW3, Motors: 1408 3500KV (4S), FC: SPAN F722 HD, ESC: BLHe li-S DSHOT 600 45A, MCU: STM32F722
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($221.21): BGGAL8
2. ($226.02): Drones6
3. ($226.02): CouponsDE
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGce2121, BGDAVIS, BGMATT7, BGb2b6c1, BANGGOODSD, BGRACING1125, 00c906
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for GEPRC Crown Analog 3 Inch 4S Cinewhoop Drone PNP.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).