Aliexpress
Click here… to search for Colorful iGame GeForce RTX 2060 6GB Graphics Card on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (386.99 USD): bGhOnEy10
Coupon (422.99 USD): Email5
(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): 502C6B, e2bcea, TTxBG10, aff7off, AFfbG10, affbg10, BGCITYADS2019, bGpAnDacHeCk
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for Colorful iGame GeForce RTX 2060 6GB Graphics Card.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).