The cards from 2Fiat.com can be loaded with Monero and ARRR.

But Google Wallet / Google Pay does not work on Graphene OS. If you want to use it but do not want to carry a second phone with you - here is a workaround:

You can use a Google Fitbit Charge 6, install Google wallet and if you do not want to wear a fitness tracker - take off the wristbands and you have a mini payment token which you can easily load with Monero.

Works great.