Fiely

I'm interested in people's experience with finding experts in any field or subject. Often when there is an event or subject that dominates the "feeds" I read things like "You should find the experts on both sides" or "go read from the subject matter experts" but I struggle with this given the vast amount of information available. I find myself in a bit of paralysis when learning about new fields in which I focus a lot on finding the "right" source.

How do you find experts and how do you verify their expertise?