Which course is the best to gain certification for Accessbility?

Which course is the best to gain official certification for Accessibility?

who’s doing the certification?

I recommend looking at IAAP. They have various certifications. I (until recently, since it expired) was CPACC certified. That’s a great one to get (and gives broad accessibility knowledge). Or for more developer-oriented accessibility, they have the WAS (Web accessibility specialist)

Just pointing you in the right direction here.

Thank you for the message!