Five paths I see work for normal people. Services reach a first dollar fastest; products take longer but scale. None of it is guaranteed, and all of it needs you to talk to customers.
AI content servicesWrite, edit and repurpose content for small brands, with AI doing the first draft and you doing the judgment.
Effort: LowStartup: Under $50First $: 7–21 days
How I'd start: Pick one industry, write 3 sample posts in a real business’s voice, and offer 8 posts a month at a fixed price.