If you have multiple 2FA accounts and multiple devices, then SafeID Authenticator is the ideal app for you. Not only can you manage multiple 2FA accounts, such as Microsoft, Google etc, in a single app, you can also sync them across multiple devices, including smart phones and desktops.
SafeID Authenticator is an alternative OTP authenticator app to Microsoft Authenticator or Google Authenticator. If any web site prompts you to authenticate with two-factor, using Microsoft Authenticator or Google Authenticator etc, you can always use SafeID Authenticator instead.