6 of 406 ideas

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

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