Really depends.<p>If it’s a B2B product, just keep talking to everyone you know who is a buyer and try to get them to take a shot on you. If the product is far enough along to add value, make sure to charge. If it’s not, and you’re just looking for feedback, make sure to let them know you’ll be charging down the line but right now am looking for quality feedback.<p>If it’s B2C, there’s a lot of ways to hustle. From stopping people on college campuses, running some light paid advertising just to get some feedback, posting on product hunt, posting on HN, posting in response to related questions on Quara... etc, etc.<p>Sometimes meetups and networking are a good way to find early users. Talk about what your product does and hand out your card with a URL on it. Ask them to give it a shot and don’t be shy.<p>Once again, all depends. Without knowing more about the product it’s hard to be specific.
Your product should already have an "existing" market who hacked something together.<p>Something social might have a dedicated forum, subreddit, FB group. A game might have a similar mod in another game. A web tool might be in the form of a spreadsheet somewhere.<p>Find out where those early adopters are and tell them about your product. You should try to charge them as early as possible, as high as possible. The early target market is often willing to pay the most. Lower your price later and reward those early adopters afterwards.
Ofcourse it needs specific promotion channels created based on what the product is about. Firstly a lnading page is to be created explaining why should an user even would invest time to taste the product. Once a landing page is created it has to be shared across forums and communities the prospective users are expected to frequently visit.