I would check with AFAA to make sure that some of the CEU courses offered can be completed online. It appears as if they are but I would check with them before ordering.
http://www.afaa.com. You can call them at 800-446-2322.
Fitness Mentors has online AFAA approved CECs. Check out their page at this link: https://www.fitnessmentors.com/afaa-ceu/. I highly recommend the Business and Sales Course.