If you live in Virginia or DC start here
https://www.vadcsoccerref.com/
Also reach out to your local club to find out who their rec soccer assignor is and find out what that assignor has going for new referees. They should have some kind of mentorship system or something in place to bring in and support new referees. If your most local club does not have anything going check the next closest ones--the support you get as a new referee can be pivotal to making it a positive experience.