How do I create a pseudonym for my "medic" site?

So I have this website about sleep problems that I made before the EAT update.
I get about 2k unique visitors per month, but I think I would get a lot more if I had any EAT

What would you guys do to get some EAT on the site?
I've been thinking about a sort of doctor sleep pseudonym

In the era when exact match domains don't matter, you can call your site whatever you want. Just make sure it's easy to remember how to spell it. If it's not a common word or phrase, I'd keep the length at 4-6 characters.