Where did you get your first 100 users?

I’m curious—where did you all find your first 100 users? For my startup, HappyPagesAI, I found them with a Reddit post that went viral (on r/sideproject). I see it as an incredible resource for generating early interest and traction. We’re gearing up for our upcoming launch and would love your thoughts on effective strategies for user acquisition. Feel free to check out what we’re working on: https://www.producthunt.com/products/happypagesai