Susannah, you can seek to become an educational partner with the American Council on Exercise. Visit www.acefitness.org.
Hi Susannah. As the previous two answers have indicated, not only can you ‘apply’ to be a presenter for the organizations that they have identified, but you can use that same process to contact and apply to become a presenter for just about any of the fitness organizations that offer (put on) seminars/conferences/classes. Most, if not all of the fitness agencies/organizations have a link on their respective websites about “become a presenter,” or something of that nature, which will highlight the steps that you need to take to apply.
I hope that this helps.