Finding good speakers starts with knowing what you're looking for. There are three types. A well-known name that draws attendees. A deep expert who delivers substantive value. And an inspirer who lifts the room. Each type calls for a different search strategy.
Well-known names you find via speaker bureaus. Start there at least nine to twelve months in advance, because their diaries are booked up far ahead. Deep experts you find in trade media, on LinkedIn and at other conferences in your industry. People with first-hand experience (clients, partners, or staff members with a special story) you find closer to home. That last category is often underestimated. Yet they often deliver the most memorable sessions: the story is authentic and directly recognisable to the audience.