Right now the best price with coupon code for GaN6 Pro 100W is 71.99 USD (in Banggood). You can create price alert here, copy coupons and view price history. Best price?
Latest coupon code price check (UTC time):
Banggood (71.99 USD)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. But wait a sec… Is it a good price? From what I can see this price is higher than average price (68.99 USD).
Link: Banggood product page
Price: 71.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGc22d9f
(there’s a little possibility that old coupon will work)
Aliexpress
Click here… to search for Baseus GaN6 Pro 100W 4-Port USB PD Charger on Aliexpress
Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for Baseus GaN6 Pro 100W 4-Port USB PD Charger.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).