Aliexpress
Click here… to search for RunCam Swift Mini 2 FPV Camera 2.1mm on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (31.74 USD): 502C6B
(CouponsFromChina.com tip: just apply this code 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): 4fcdf2, d6dfaf, e2bcea
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for RunCam Swift Mini 2 FPV Camera 2.1mm.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).