What it is
Type "strength training" and get back a sprawl of real search phrasings: how, why, can, for, versus. It is search-suggestion data arranged so you can read it.
Best for
Coaches who know their subject but keep writing posts nobody searched for. The question list is effectively a content calendar in the language your audience uses.
Watch out for
Free searches are rationed per day. And volume is not intent — plenty of those questions are asked by people who will never hire a coach, so filter for the ones a buyer would ask.