Go on LinkedIn, find contacts, email/call them to explain why your product would help them and their business, set up a demo over video chat. Pitch them your product, why it would benefit them and try to secure a deal.
After you've got some sales under your belt, sponsor a booth at a tradeshow relevant to your market. Demo your product in-person, collect leads and follow up for more sales. Rinse and repeat.
After you've got some sales under your belt, sponsor a booth at a tradeshow relevant to your market. Demo your product in-person, collect leads and follow up for more sales. Rinse and repeat.