Where keywords actually come from
Most beginners start in a keyword tool, but the best keyword research starts with the business: what do your customers ask in sales calls, what do they email support about, what do they search after a demo? Sales-team transcripts, support tickets, and chat logs are gold mines for high-intent queries the keyword tools miss.
Once you've mined internal sources, expand into the external sources: Google's autocomplete, People Also Ask, related searches, the keyword tools (Ahrefs, Semrush, Moz, Keywords Everywhere), Reddit and Quora discussions in your category, and competitor sites' top-ranking pages. Each source adds queries the others miss.