What events don't have an end date?

Question

I only know of one event that doesn't have an end date, which is the QR code Magearna.

Comments

Have you checked https://www.serebii.net/events/? You can find by Pokedex Number, Year, or By Distribution Type. It will list the Pokemon as well as Distribution Type, How to Get, and Dates.

Answer 1

The QR code Magearna, The QR code Capped Pikachu with the Z-Move, the Gigantamax Melmetal, and the Original Magearna.