Looking for worthy software architecture courses

I am a C++ developer with 5 years experience now and I want to shift my focus to software architecture with the backing of my employer.
So I am looking for a good course/training. It doesn't need to be C++ focused but since I always worked in C++ this is the place to ask for me.
When looking around I find a lot of stuff I am not sure if its valid, e.g. AI experts giving architecture courses or "iSAWB - International Software Architecture Qualification Board". From my point of view the most valid experience I would gain from an experienced architect itself, but I don't know how to find that.

Did anyone take courses/training that were valuable its price or do you have any other tips for the path to an software architect?



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