TimesKey NFC Tag NXP NTAG215 100PCS NFC Sticker (Round 1in) Same NFC Chip Compatible With Amiibo 504 Bytes Memory Fully Programmable, Works with All NFC Enabled Devices
https://www.amazon.co.uk/dp/B07MD8LGCW/ ... LDb44NF32ZThese Are the ones that I used. Do note, that the phone doesn’t need to be unlocked but the screen will need to be illuminated for this to work.
They could be very useful in the kitchen with the Shortcuts app as you could send them to start alarms of different times right next to the cooker.