Use the words a buyer would choose
Put the solution category in the first field and one concrete recurring problem in the second. If a competitor is relevant to the buyer’s switching decision, include its name. Leave that field empty when you do not have a real alternative to compare.
Keep each input short enough to resemble a search phrase. A paragraph of product positioning will produce awkward keyword ideas. Start with the task, not the feature list.
Validate the generated list with real discussions
The ideas are a starting point produced from fixed phrase patterns. They are not AI research, live keyword data, or an estimate of demand. Open the search builder, test the specific terms, and read the results.
Keep the phrases that repeatedly find relevant questions. Drop terms that mostly produce unrelated discussions. Add synonyms from the conversations you read; buyers may use a different name for the same task.
Choose a small list you can review
Leaddit’s Starter plan includes 15 keywords, Growth 40, and Scale 100. Filling the quota is not the aim. A small list of useful phrases makes it easier to understand why a match appeared and whether the product fits.
Copy the ideas into your own notes or keyword setup after reviewing them. Your first product scan is free, so use that evidence before choosing a wider paid plan.