I think a good place to start researching this would be with the U.S. Bureau of Labor Statistics. The BLS maintains an online database where you can see industry classifications, pay information, learn more about what job skills/degrees/certifications would be useful, what the outlook for the industry is expected to be over the next ten years, and even dive into the employment and pay data by state or geographic location.
I would encourage you to take a look at their Media and Communication overview page here: https://www.bls.gov/ooh/media-and-communication/home.htm
Founded in 1893, the International Alliance of Theatrical Stage Employees represents workers in the entertainment industry. Our members work in all forms of live theater, motion picture and television production, trade shows and exhibitions, television broadcasting, and concerts as well as the equipment and construction shops that support all these areas of the entertainment industry. We represent virtually all behind the scenes workers necessary to the functioning of the entertainment industry, from all forms of live entertainment to motion picture and televisions to conventions and trade shows.
You can learn more about IATSE, what types of jobs are available, etc.... here: https://www.iatse.net/