Start With Intent, Not Volume
A keyword with lower search volume but clear buying intent can be more valuable than a high-volume, purely informational term.
Free Ways to Find Keywords
Google Autocomplete, the “People also ask” box, and related searches at the bottom of results all surface real phrasing at no cost.
Grouping Keywords Into Topics
Cluster similar keywords under one page instead of creating near-duplicate content for every variation — this also avoids competing against yourself.