Or buy https://www.amazon.com/gp/aw/ol/B01M0GB8CC/ref=olp_tab_new?i... from datavision self fulfilled, they're the only seller on a ton of apple stuff and I assume they're authorized
https://www.amazon.com/Apple-MMEF2AM-AirPods-Wireless-Blueto...
Here, buy from Amazon direct and you'll get a real one.
The chances of getting a counterfeit item in some product categories is basically 100%. Go ahead, try to buy a real pair of Apple iPhone corded headphones on Amazon. That assignment is quite literally impossible.