Megan Abbott, whose newest novel The Turnout is out this month, had some good advice for how to find the right narrative perspective for your book:

I’ve always been interested in the “Gatsby structure,” which is when you don’t tell the story from the point of view of the most interesting character, though they can become the most interesting character, of course. You let Nick Carraway tell it…

You want a watcher to tell your story. Somebody with an exciting life may not have the time or focus to notice what’s happening around them.