Inoreader
Inoreader is a web platform where you can follow blogs, podcasts, social media content, and e-mail newsletters. With Inoreader, you can follow all the content sources you want and filter them according to your interests.
When you integrate forms.app with Inoreader, you can track a web page or URL through your form responses. So you can subscribe to resources that your users are interested in.
You might also like

Skipio
Create a customer or product profile for your website.Zapier

Wrike
Create new tasks, comments, folders, and automate your project management processes.Zapier

NovoCall
Find and contact your potential customers.Zapier

MailerLite
Create a subscriber or update an existing email address with your form data.Zapier