Yammer
Yammer is an application that accelerates the internal communication process of your employees. It brings together all your employees in a corporate network and offers the opportunity to add documents or photos to conversations.
When you combine your forms.app and Yammer accounts, you can create a message through your form responses. In this way, you can strengthen your workflow by accelerating intra-team communication.
You might also like

Eventbrite
Collect registrations with your forms, create events in Eventbrite.Zapier

Google Sheets
Streamline your form responses to a Google Sheet and automate your work.NativeZapier

Zapier

Siteglide
Connect your form responses to your Siteglide.Zapier