Hello, Sierra G - Initially, to answer your question, I would say computer tech , communication studies, education. I did have a career in acting/theatre with a Bachelors in Theatre, but it was a very long time ago. Also, for the performing arts, it will be important to relocate to either Los Angeles or New York. It is possible to have a very creative and actually fun career !
Looking back on my degree, I would not have majored in Theatre, even though the actual B.A. opened many doors for me along my quite satisfying career path. I think I would have majored in social science or communications. My second career for 27 years was indeed in social service case management.
Keep in mind that times and job roles change over the years. It happened in the social service field. So it is difficult to project labor market predictions. Certain things should be a constant, however. Anything in the computer field or the medical services will probably always have plenty of job opportunities.
If you choose to major in Theatre, you can always teach acting (if you get the credential), start your own theatre group (which will mean hours and hours of grant writing), freelance as an actor in L.A. or New York.
Whatever you major in, remember that the Bachelors Degree will carry some weight in the labor market. Better yet, consider going for a Masters Degree in a complimentary subject that you decide upon. I wish you all the best in your exciting educational venture !