Build a comprehensive topical authority map for the niche [niche]
Identify the main pillar topics that cover the core areas of this niche. Under each pillar topic, list relevant subtopics and supporting content ideas in a hierarchical structure. Suggest content formats for each subtopic (blog, guide, video, tool, case study, etc.) and indicate how these topics can be internally linked to build topical authority.
The output should be organized in a clear mind map or outline format.