Aliexpress
Click here… to search for BlitzWolf BW-KB3 Bluetooth 5.0/2.4G/Type-C Mechanical Keyboard on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Hong Kong.
Link: Banggood product page
Coupon (42.99 USD): BG69d10e
Coupon (89.75 USD): BGcf924d
(CouponsFromChina.com tip: apply code in your basket (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): BGff5312, BGa19772, BG5765a1, KB3SDG473, BG7f23ff, BGfe4a06
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for BlitzWolf BW-KB3 Bluetooth 5.0/2.4G/Type-C Mechanical Keyboard.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).