If you say "Alexa, Trigger priority device", then OnHub will prioritize that device

Google Wifi was designed to let you do everything you love online, anywhere in your home. It’s a new home Wi-Fi system that replaces your existing router. These Wifi points are placed throughout the home and they work together to provide attic-to-basement coverage. It’s designed to handle multiple devices streaming, downloading and sharing at the same time.
Trigger Alexa Routines and make Text to Speech announcements with Voice Monkey.
Simply enable the Voice Monkey Alexa skill, add a trigger (or monkey) and then use this service to unlock Alexa Routines as an IFTTT Action.
See voicemonkey.io to learn more.