Hunter - Find all the email addresses related to a domain
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
AnyMailFinder.com - Find anyone's email address
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
EmailMatcher - Find anyone's email address in a matter of seconds, for free
Microsoft Power Automate - Microsoft Power Automate is an automation platform that integrates DPA, RPA, and process mining. It lets you automate your organization at scale using low-code and AI.