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 (153.07 USD): Drones6
Coupon (153.07 USD): CouponsDE
(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): 10FS3SE, e2bcea, esFullSpeed, snappyde07, TTxBG10, BGss9%rc, bgssaff9, AFfbG10, 502C6B, BGBFCR25, BGCITYADS2019, BGVDay10%off, BGMPB2020, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10, 7bcdf9, BG10RACING, BGMATT7, BGDAVIS, BANGGOODSD
(there’s a little possibility that old coupon will work)
Price history and price alert
Check out price history chart (for all/most countries) for FullSpeed Leader 3SE 130mm FPV Drone PNP.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).