9 of 406 ideas

Never guess a niche twice: take an ebook that is already selling, produce the audio version for a few hundred dollars, and stack a second royalty line onto a title you have already validated.

One Etsy shop just over ten months old has taken 14,900+ sales selling downloadable clip art packs — and Claude Code can now batch-produce a 25-image pack that matches a reference style in one prompt.

One PDF planner built specifically for GoodNotes, sold on Etsy, at $894,000 in lifetime sales from one listing

A YouTube channel about corporate compliance paperwork — arguably the most boring topic on the platform — hit $80,000 in a single month before it had 60,000 subscribers

One digital listing of AI-generated vintage journal pages: 395 sales and over $6,300 in two months, no inventory, no shipping, and the same process rebuilt five more times with a different theme.

Two self-published personal-finance books, $75 total spent on ads, ~$97,000 in royalties in a single year — years after they were written.

Interview founders, publish the numbers, and sell access to the archive — about $1M a year off 4,000+ case studies, and the reason a rival concluded the moat is simply five years of interviews nobody else wants to do