I hear ya Matthew, been there, done that. You know when you met your team, and trust, have confidence in them, which is important, and how much searching around can you do without causing delay, and other problems, and winding back to where you started. I'm fortunate to live in where there are more top 50 hospitals, and doctors than anywhere else, and even that was narrowed down to have a few 2nd opinions, and certainly didn't go to all. I was referred to a top hospital in ENT, after my diagnosis, and stuck with them, but did go elsewhere later on, and now at a different top CCC in ENT. I guess as time, status changed, so did my choices change too.
Good luck with your decision.