Return all websites with specific keyword in base URL

How can I get all websites having covid keyword in their Base URL and ending with specific country domain e.g eu. So that i can get all websites like www.(.*covid.*).eu; examples below:-

• www.xyzcovid.eu
• www.covidabc.eu
• www.xyzcovidabc.eu

I have tried combining google search operators: inurl and site however it shows results from suburls as well like these www.xyznews.com/abc-covid-trump-statement-xyz