Not into earloops, consumer products or foreign standards.. Current in stock, ships from/sold by Amazon.com picks would be:
https://www.amazon.com/dp/B095DVPTCT?m=ATVPDKIKX0DER
https://www.amazon.com/dp/B005KLZAYU?m=ATVPDKIKX0DER
https://www.amazon.com/dp/B008MCV6Q0?m=ATVPDKIKX0DER
https://www.amazon.com/dp/B008MCUZZS?m=ATVPDKIKX0DER
https://www.amazon.com/dp/B07571LL9K?m=ATVPDKIKX0DER
https://www.amazon.com/dp/B007ZUDVC2?m=ATVPDKIKX0DER
I am well aware of the situation on the unmoderated /r/Masks4All KF94 sales sub. The owner left, the mods have apparently also abandoned. Lots of questionable information and promotion of price gougers.
It is easy to find crap PPE on Amazon. It's been done many times by various parties attempting to poison that well. Keeping the counterfeit narrative alive is important for those profiting from the pandemic.
There are also a lot of great deals on Amazon, and I've had great luck obtaining PPE via Amazon -- all of which I confirmed with vendors and tested myself.
Other great deals on Amazon currently:
Indeed. Lots of great NIOSH-approved respiratory protection products up on Amazon. Distribution partner for 3M Halyard. Stick with major domestic brands and "ships from, sold by amazon.com" items only. Avoid marketplace sellers, foreign manufacturers, and foreign standards (KN95, KF94, FFP2 are risky bets) -- Current in stock recommendations:
https://www.amazon.com/dp/B095DVPTCT?m=ATVPDKIKX0DER
https://www.amazon.com/dp/B008MCV6Q0?m=ATVPDKIKX0DER
https://www.amazon.com/dp/B008MCUZZS?m=ATVPDKIKX0DER
https://www.amazon.com/dp/B07571LL9K?m=ATVPDKIKX0DER
https://www.amazon.com/dp/B007ZUDVC2?m=ATVPDKIKX0DER