The Romance > Time Travel category is a confirmed Slow Niche (avg rank ~9,050, ~16 sales/day top-20 average) with steady KU consumption (52% share) but modest ceiling; it rewards series stickiness over launch spikes. The SF&F > Science Fiction parent category is a high-volume Beaten Track Mainstream (avg rank ~498, ~170 sales/day) with fierce competition and a low stc_ratio of 0.38, signalling supply far outpaces demand at the genre level. The cross-genre keyword cluster — 'science fiction romance', 'scifi romance', 'sci fi romance' — scores consistently in the 47–52 range, making romance-inflected SF the clearest demand signal in the data. Sci-fi thriller and sci-fi horror keywords are rising faster than pure SF search terms, pointing toward plot-driven, tension-heavy time travel as an under-exploited pocket.
7 ranked elements, 5 comp titles, 3 market gaps identified — unlock to see the full Map.
7 elements ranked by demand vs. supply…
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