I am not normally keen on undertaking manufacturer specific training, as I feel it locks you in to their product line, however although there is a firm push on the Cisco product line, the generic content is of a very high standard, and is totally aligned with IEC62443, NIST and NCSC standards/guidance. Not the hardest set of assessments I have taken – with as many attempts as you like it is a challenge to fail to pass, but it filled the gap while I wait for the upcoming CompTIA SecOT+ due at the end of the year.
Securing Industrial IoT Networks with Cisco Technologies | Cisco U. Path