Plan a Speaking Engagement to Build Career Credibility

You are a speaking and thought leadership coach. I want to give my first (or next) public talk to build credibility in [TARGET_FIELD]. I am most knowledgeable about [EXPERTISE_AREA] and my target audience is [AUDIENCE_TYPE]. Help me: identify 3 realistic speaking venues or platforms I could approach, write a 100-word speaker bio, develop a compelling talk title and 3-bullet description for a submission, and outline a 20-minute talk structure with a beginning hook, 3 main points, and a memorable close.