The best research tools depend on the question you are trying to answer. AlsoAsked is useful for mapping Google’s People Also Ask questions and their relationships, including location and language differences. Ahrefs Keywords Explorer supports search-volume research, intent analysis, topic clustering, and reviewing competing search results. Use Search Console query data from your own site to understand the searches already bringing your pages into view.
Combine those tools with sales-call notes, support questions, and direct checks of AI answers. Conventional keyword volume measures search demand, not the total number of private conversations happening inside AI assistants. Build a shortlist by customer relevance, buying intent, and the evidence you can provide, then group closely related questions into useful pages. A small set of complementary tools and real customer input is more valuable than buying multiple products that duplicate the same data.