This article explains how to connect Google Home to Bluetooth speakers using the Google Home app. It also includes some troubleshooting tips to help with any issues you might encounter during the initial pairing process.
How to Pair and Control ANY Bluetooth Speaker with Google Home
Here's how to connect Google Home to your Bluetooth speakers:
With both devices turned on, open the Google Home app. It’s available for Android, iPhone, and iPad.
In the Favorites tab, check that you have selected the correct house. If you want to change it, press that menu and select the other house.