Sometimes ezine editors post submission guidelines within the ezine or on the Web site.
Online job banks usually have an abundance of ezine freelance writing jobs for both well-established publications and start-up publications.
Do not apply for a paid ezine writing project unless you have easy access to the Internet, however.
You may potentially get offered a paid position if the ezine becomes profitable.
The best plan is to find an ezine regarding a topic you are interested in and contribute some content for the initial experience without expecting it all to culminate into something profitable.