Aliexpress
Click here… to search for FEKER JJK84 84 Keys 3/5pin Hotswap Type-C Bluetooth 2.4G Mechanical Keyboard Kit on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (37.83 USD): BGff5312
(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): BGc0ac93, BGb58191, Cuponation9, BGKBandmos12
(there’s a little possibility that old coupon will work)
Price history and price alert
Do you need price history chart (for all/most countries) for FEKER JJK84 84 Keys 3/5pin Hotswap Type-C Bluetooth 2.4G Mechanical Keyboard Kit? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).