How to acquire first 50 paid users on my B2B SaaS?

Hey, So i am building a B2B SaaS, whose primary audience is agencies and other saas ventures. It basically amalgamates 8-9 types of softwares ranging from HRM to Lead Management and invoice management to contract creator. We’ve been putting out content on social media for a month now, and the GTM strategy is to launch on ProductHunt and similar other platform (listed 20 of them through GPT) and do 1:1 cold outreaching. Although, I don’t think this is very efficient, i would love to know what you guys would recommend to acquire the initial 50 users?