Share your product in relevant Reddit communities to reach highly engaged audiences interested in your specific niche. With 52M monthly visitors, Reddit offers access to passionate communities for almost every topic. Free to post but requires genuine community engagement rather than promotional spam. Success depends on providing value and following community rules - promotional posts without context get removed quickly. The platform excels for niche products with clear target audiences. Best approach is becoming a valuable community member first, then sharing your solution when relevant. Can drive massive traffic if done authentically.