I think if a fitter is producing good work, they wouldn't be afraid to show it, so it should already be quite easy to find on social media. Want to see my work? Go to Instagram or Facebook. Heck, anyone and everyone can see how I fit one of the best triathletes in the world just last week; it's right there for the world to see or critique. Do I post every fit? Nah, I don't have time for that, and struggle to post on social media as is, but it's not hard to see, as you state, there's an orthodoxy to all my fits, and the fits from those I've taught. They all look fairly similar for a reason, and their foundation are all FIST. It might be FIST on steroids, but it's FIST at the core.
As for education and certifications? Man, I wish I had the answer to that. I certainly know how frustrating it is to see someone seemingly ignore what you've taught them. I will admit, though, I don't think any client has ever come to me because of a certain certification I've acquired. I know there are a few, and I mean just a few, who've come because I use Retul, but the overwhelming number of athletes who come to me are due to word of mouth. This is especially true of triathletes. I always joke that if you conduct a good fit for a Masters Crit Racer, he's not going to tell a soul. Not his teammates, not even his own mother; he want's no one else to have the same advantage. You conduct a good fit for a triathlete, and they tell everyone; it's all over social media!
Now, I'll be honest, I'm not super motivated to post up a portfolio on this site, but if it encourages others, in some small way, to do the same, I'll do it over the next few days.
Jim Manton / ERO Sports
/ ERO Insight
Aero Tidbits posted on Instagram