For google: U2F/WebAuthn paper backup codes (scratch codes) If only the screen is broken, but the phone can receive SMS, and you use mac with icloud, you can

For google: U2F/WebAuthn paper backup codes (scratch codes) If only the screen is broken, but the phone can receive SMS, and you use mac with icloud, you can receive SMS on your mac. Phone call or SMS to a "real" VOIP number, which you can then pickup on ANY phone and/or your computer. Google Voice isn't real enough for this. You can also not use 2FA. For other services: hit or miss. To the extent you can login to them with oauth ("login with google") and you don't mind giving away your identity that way (sounds like you don't care much), then always do that. 1) you don't have another password/account to manage 2) your google oauth login will stay valid for quite a long time, giving you lots of cushion to get a new phone, unless you're especially unlucky with the timing