Hacker News is a breeding ground for tech enthusiasts and early adopters. You probably even check it out yourself.
It’s a thriving community of entrepreneurs who can provide you with valuable feedback on your product. They’re usually not afraid to be brutally honest, but make great early adopters that can help you shape your product.
The best way to leverage Hacker News for early publicity is actually quite simple. Just post “Ask HN: Review my startup, xyz.com”. After you’ve posted, engage with the feedback you receive and get a discussion going without being defensive.