Firstly, get some testimonials and case studies for the product.
Build a website and pay to have it SEOed professionally.
Plan a blog writing year of articles.
Get public speaking opportunities to showcase your expertise and if you can, mention the B2B solution.
Buy a mailing list (or build your own) and use direct mail to educate the audience in your area of expertise. Later mention the B2B solution and build a landing page on the website to capture inbound enquiries.
Seek referrals and word of mouth from happy customers.
In order to do these things you will need the following marketing assets: Website, brochure collateral, marketing automation software, CRM database, SEO and strong copywriting.
Happy to help with more detail if you arrange a 20 minute phone call with me personally. I can either tutor you in how to do it yourself, or my team can do it with/for you.