Summarize this article:

A large part of this decision involves your qualifications: coaching professionally requires a high level of experience and expertise, while recreational coaching is a less competitive field. The National Collegiate Athletic Association (NCAA) oversees volleyball programs at all division levels in colleges and universities. You will need to have years of volleyball playing and coaching experience in order to apply for a job with a college program. The school's athletic director is often responsible for hiring coaches. Many high school teams have men and women's volleyball teams. Whether these positions are paid or volunteer will depend on the school and the budget. Local park and recreation departments and community associations use professional and volunteer coaches for youth programs.  Check out nationally popular programs such as I-9 Sports, Diversity Youth Sports and We Play Sports. Express interest to youth sports leagues that are specific to volleyball, such as the United States Youth Volleyball League or the Youth Volleyball Association. The national leagues can put you in touch with your local chapters. If you are better at coaching than at playing, you can coach an adult single sex or co-ed team. Check with your local community college, recreational center or YMCA for leagues and teams.

Summary:
Decide whether you hope to coach professionally (for payment) or recreationally (volunteer). Coach volleyball professionally with a college or university team. Coach at the high school level. Look for opportunities to coach youth leagues. Join an adult recreational league.