After trying at least 60 other potential domain names, the domain name https://EarlyUserGrowth.com was not taken, so I registered this domain name for this project.
I then quickly put together a simple landing page where people can sign up to receive an email once the first article is live.
Total time invested: probably 40 minutes, along with $10 to buy the domain name. It doesn't take years and millions of dollars to change people's mindset, it just requires some action.