Since there aren't many resources on getting FHIR certified and a place for interested people to meet, we(a small group of colleagues from both software and medical backgrounds) decided to form a group on LinkedIn with the support from HL7 International. This was created in October 2021.
This is completely voluntary work where we are connecting others to form study groups, post useful content for learning & HL7 courses, share our experiences via video calls while assisting them in anyway with what we know about FHIR.
As of Feb 2022, we have reached 300 members !