Do you start with a tool?

No. Start by thinking like a confused searcher.

Where do real questions come from?

They are messier and more honest than polished search suggestions.

Should you categorise keywords first?

No. Start with one messy list and dump everything you find.

How do you cluster keywords?

The buckets usually form on their own at this point.

Which page do you write first?

The pillar (hub) article, before any of the subtopics.

How do you check for gaps?

Run the list through an NLP tool to double-check.

Where is the full process?

Every step in order, with no fluff and no paid tools required.