Contact nmfilm.org. They can help with free listing of your services, list of unions (some nonunion workers are hired), list of production and casting companies. Drive by and ask guards who they work for. Check Netflix website for jobs in NM.
Mainly you can put yourself on the background extra casting sites...
Try being a Background Actor. There is FB Group, Background Cafe. Join the Facebook group. We meet the 2nd Saturday of the month. Really cool group. It got started in 2014. You'll find out how to get work. On set protocols, how to do paperwork, how to work with the Production team, etc. It is usually a great time. Meeting some great people and watching/learning how things work on a production.
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