What do you use instead of phone numbers that average people would be able to use? Is email with an MFA option the best bet right now? In that case, what do ema

What do you use instead of phone numbers that average people would be able to use? Is email with an MFA option the best bet right now? In that case, what do email providers use - recovery email addresses? Faxing in photos of ID is just asking for someone to forget to delete it too, having it end up in some data dump one day