Open Hacker News on a Sunday and you'll find ten threads asking the same question: "how do I find a unique, untapped, million-dollar SaaS idea?" This is the wrong question. The market has already told you which problems are worth solving — by paying for the products that solve them. You do not need to find a unique idea. You need to find a solved problem and ship a sharper answer.
Every category I have ever entered had ten incumbents waiting. Project management has Linear, Asana, Notion, Monday, ClickUp, Trello — and people are still launching new ones every month. CRMs have HubSpot, Pipedrive, Close, Attio, Folk. Email senders have Mailchimp, Beehiiv, ConvertKit, Resend. None of these are "new ideas." They are existing ideas, executed with a sharper opinion than the incumbent had.
What about competition? This is the part most people get backwards. Competition is signal, not noise. If ten thousand people pay $40 a month for a tool, that proves the demand exists, the willingness-to-pay exists, and the support cost is bearable. Your job is not to invent a different problem — it is to study the existing tools, find what they get wrong (and there is always something), and ship the version that fixes it.
The real edge is not novelty. It is opinion. Most successful "copy a category" products win on one specific axis: speed (Linear over Jira), aesthetic (Notion over Confluence), focus (Superhuman over Gmail), price (Beehiiv over Substack), workflow (Cursor over VS Code). Pick one axis. Be loud about it. Build for the slice of users who care about that one axis more than the average customer does. They will switch and they will pay.
Here is the playbook I use when I want to enter a category. (1) List the top five existing tools. (2) Write down their pricing, their target user, and their loudest complaint on Reddit and X. (3) Find the axis no one is winning on. (4) Build the smallest possible product that wins on that one axis — and only that one axis. (5) Sell first to the people who already pay for the alternative. They have already qualified themselves as buyers.
The world does not need another "uniquely innovative" SaaS. It needs better versions of the tools people are already paying for. Stop chasing originality. Originality is the lottery. Execution is the salary.