ACE and NASM both does a great job for the general population, but NASM puts a slight bit more emphasis on corrective exercise. However, any of the certifications you have mentioned will get your foot into the door.
Broadway theatre, commonly known as Broadway, refers to the theatrical performances presented in the 41 professional theatres with 500 or more seats located in the Theater District and Lincoln Center along Broadway, in Midtown Manhattan, New York City.
The next longest-running Broadway show that is still playing is Jersey Boys, which opened on Broadway in 2005 at the August Wilson Theatre. If you would like to learn more about what are the longest running Broadway shows, visit Broadway.org, the official website for Broadway tickets and information.