How do you choose where to go?

I thought I had a place picked and felt comfortable. Then I found out they were out of network. Many of the main places posted here are in network: Stanford, Barrow, Mayo, Mass General, etc.

It seems if surgery was an option it would be much easier but with it being embolization and radiation there is no “one great place” unless I am looking in the wrong place.

How do you even pick because most can’t afford multiple trips across the country?