I'd like to try this but it seems just about impossible to locate actual high quality green tea online. Basically every green tea product on amazon, even those

I'd like to try this but it seems just about impossible to locate actual high quality green tea online. Basically every green tea product on amazon, even those in the price range of $50 for a standard quantity, has loads of reviews talking both about how excellent it is and how terrible it is, each bringing detailed points in their favor. I figure it's mostly due to review warfare between products, but in any case the situation is quite dismal—I investigated something like 30 products and couldn't find a single one that looked like a safe purchase, even with a very flexible budget. Not sure where else to look since the same problem exists on a larger scale with the rest of the internet since everyone's trying to push their brand or trash someone else's.