I built a startup that converts product documentation into interactive quizzes, but I don't know how to do GTM for it. We got 5,000+ game plays organically, but

I built a startup that converts product documentation into interactive quizzes, but I don't know how to do GTM for it. We got 5,000+ game plays organically, but I am not able to reach out to B2B SaaS companies, which are my primary customers. Please suggest!