Well there is a website [https://pop.co/] that is dedicated to help people innovate their ideas and create startups by giving them a free .co along with an email, and a webpage.
How is all of this free? And why?
POP.co wrote
It’s free because we believe in helping people pursue great ideas. We want to tear down barriers that hold people back. We’re absorbing the cost of registering a domain, setting up custom email, and building a webpage, so your idea gets a chance to become amazing!
There is only one requirement and that is you must have a mobile phone number to verify yourself. Other than that there is no set requirements.