Good question. My trusted EU dealer stopped supplying Autel drones and their parts in the second half of 2021. I seem to have bought their last propeller set in stock last summer. The online dealers I don't yet know to be trustworthy or not only offer the regular propellers.
Maybe ask these guys in Germany. They are still offering some Autel parts and so they might know where to get you a set of propellers.
This trustworthy dealer in the Netherlands also seems to still hold a supply of some spare parts. I have bought Evo 2 add-ons from them. I suggest you send them an e-mail with your request.