Subject Line Ideas for Any Email

I need you to help me create high-converting email subject lines for my [TYPE OF EMAIL - promotional, newsletter, welcome, etc.] about [TOPIC/PRODUCT/SERVICE]. DETAILS: - Brand/Company: [BRAND/COMPANY NAME] - Target audience: [TARGET AUDIENCE] - Key message/offer: [MAIN MESSAGE OR OFFER] - Email goal: [DESIRED ACTION - open, click-through, purchase, etc.] - Brand voice: [BRAND VOICE - professional, casual, quirky, etc.] Please generate 15-20 subject line options across these effective categories: 1. Curiosity-driven: Subject lines that create an information gap the reader wants to fill 2. Benefit-focused: Subject lines that clearly communicate value to the reader 3. Urgency/scarcity: Subject lines that create FOMO (fear of missing out) without being spammy 4. Personalized/targeted: Subject lines that feel tailored to the recipient 5. Question-based: Subject lines that pose an intriguing or challenging question 6. List/number-based: Subject lines that promise organized, scannable content 7. Announcement-style: Subject lines that position content as important news 8. Story/narrative: Subject lines that hint at an interesting story For each subject line, please add a brief note explaining the psychological principle at work and why it might be effective. Also indicate which subject lines would work well with emoji and suggest appropriate ones. Finally, provide 3-5 matching preview text suggestions that would complement your strongest subject line options.