Buy them from the manufacturer themselves. Anker, Monoprice etc. Or places like B&H, Adorama, Best Buy, at least you get good customer service if it doesn't work.
Is there a resource / someone’s Medium who will break down all of the legit manufacturers? I’m aware of some for RPi like Jeff Geerling has great microSD card reviews
Btw I went with Anker because it had the least reported issues from Amazon (after extensive filtering on my part)
