Need advice on marketing my product , I will not promote

Hey everyone, I launched my first product, which is an AI based Image Generation Platform for your social media profiles, headshots etc, about a month ago. I’ve got around 100 users and 1 paid user so far, but I’m struggling to get more people on board. I’ve been posting on X and Reddit, and while it worked a little at first, the excitement seems to have faded. I’m on a tight budget, so I need some creative ways to market without spending money. I’m really new to this whole marketing thing, and I’d love to hear what’s worked for you in growing your product or audience. Any tips or advice you can share would mean a lot! Thanks in advance!