This collection maps 20 opportunities across business models, from focused products that a solo founder can test quickly to broader platforms that need deeper integrations. The ideas span Low, Medium build scopes and use business models including Subscription. Example buyers include Sales teams, agencies; Finance teams, SMBs; Support teams, SaaS.
The three detailed previews below are deliberately different enough to compare. Look for a specific recurring problem, an audience you can reach without a huge advertising budget, and a first version that delivers one measurable result. The market figures are directional estimates. Confirm willingness to pay through customer conversations, competitor research, and a small demand test before building.