If you are using an authenticator app with a cloud backup option like Authy, then you can install the app on your laptop as well.
This gives you access to the authentication codes even when you don’t have your phone with you. It also allows you to easily restore your secret keys when you buy a new phone.
Many authenticator apps also allow you to generate backup codes. These codes can be used as one-time passcodes when you don’t have access to your phone.