I have not yet seen a vascular specialist. I have an appointment to see one in a few weeks. In reality I doubt there is little they are going to be able to do for me based on my online research.

I would suggest a good initial resource on vasculitis is the Mayo Clinic's site. It is informative but not meant to not meant to replace your medical professional's input. They say that "Treatment focuses on controlling the inflammation and managing any underlying conditions that may be triggering the vasculitis.".

Remember that GCA is a form of vasculitis and large dose steroids is the treatment discipline for GCA.
As for type of vasculitis, I have no idea. I don't even know what the types are.

Here is Mayo Clinic's Vasculitis website - https://www.mayoclinic.org/diseases-conditions/vasculitis/symptoms-causes/syc-20363435