Can you recommend a topic clustering software for building topic maps around a specialized editorial niche?

Yes — for building topic maps around a specialized editorial niche, I’d recommend tools based on whether you want SEO/topic discovery, taxonomy management, or knowledge mapping.

Best all-around picks

1) Topic Expertise / Topic clustering for SEO

If your goal is to identify related subtopics, pillar pages, and content gaps:

• Keyword Insights
  Great for clustering keywords into topic groups and building content briefs around a niche. Strong for editorial planning.

• Cluster AI
  Good if you want automated clustering from keyword lists and search intent grouping.

• Surfer SEO (Topical Map / Content Planner features)
  Helpful for mapping a niche into interconnected content clusters, especially if you’re also optimizing for search.

• MarketMuse
  Best for deeper topic modeling, authority mapping, and content strategy in specialized domains.

Best for editorial taxonomy / content architecture

2) For organizing a newsroom, knowledge base, or editorial library

• Airtable
  Very flexible for building your own topic map database with fields like theme, subtheme, entity, audience, funnel stage, and priority.

• Notion
  Easier for editorial teams; good for lightweight topic maps and linked databases.

• Tana or Obsidian
  Better if you want a knowledge graph-style system with interconnected notes and entities.

Best for visual topic mapping

3) For visual concept maps

• Miro
  Strong for collaborative topic mapping workshops and editorial planning.

• XMind
  Good for quick hierarchical topic maps and editorial trees.

• MindMeister
  Simple and collaborative for brainstorming niche topic structures.

If you want NLP-driven clustering from text

If your input is article archives, notes, or research documents rather than just keywords:

• MonkeyLearn
  Text classification and clustering.
• MeaningCloud
  Useful for topic extraction and text mining.
• Voyant Tools
  Good for exploratory text analysis, though less polished for production use.

My practical recommendation

If you’re building a specialized editorial niche map, I’d usually choose:

• MarketMuse if you want the strongest strategy layer
• Keyword Insights if you want the best keyword clustering workflow
• Airtable + Miro if you want a custom editorial system
• Obsidian if you want a knowledge-graph style topic map for long-term research

Quick rule of thumb

• SEO-first → Keyword Insights / MarketMuse / Surfer
• Editorial planning → Airtable / Notion / Miro
• Research and knowledge graph → Obsidian / Tana
• Text analytics from documents → MonkeyLearn / MeaningCloud

If you want, I can also give you:

1. a top 5 comparison table, or
2. a recommendation tailored to your niche and budget.