Aliexpress
Click here… to search for POWKIDDY RGB20 RK3326 128GB 3.5 inch Game Console on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Coupon (98.17 USD): BGAlerabat5
(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): BGJPN3RB, BGJOE7E, BG5d6806, BGVDGC12
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for POWKIDDY RGB20 RK3326 128GB 3.5 inch Game Console.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).