I keep Authy installed on my tablet for exactly this reason, in case I lose my phone I still have a backup device for 2FA. Won't help for the SMS 2FA for the si

I keep Authy installed on my tablet for exactly this reason, in case I lose my phone I still have a backup device for 2FA. Won't help for the SMS 2FA for the sites I'm forced to use that on, but at least Authy lets me get to the important ones.