Comp titles — comparable titles — are the existing books a reader of your romance would also love. They are the most useful positioning tool an author has and the most commonly fumbled: too famous, too old, or matched on setting when readers actually match on trope. This guide covers what a good comp looks like, the four tests it has to pass, where to find candidates, and how to use trope and reader-demand data instead of guessing.
Registry figures as of 2026-08-21. These are the datasets behind the comp-title section of a Tropesmith Map; the how-to below stands on its own.
Match on trope stack first, then heat and tone, then shelf. Pick two or three books published in the last two to three years that share your main tropes and heat level and are visibly succeeding in your exact subgenre without being household names. Verify each one against reader reviews (do readers describe it the way you would describe your book?) and against its Amazon categories (are those the shelves you want?). If you want the search done from data, a Tropesmith Map returns comp titles three ways from a registry of 229,831 titles.
A comp does three jobs. It sizes the audience: "readers of X" is a real, countable group. It positions the book: the comp's categories, keywords and also-boughts are the map of where your book should sit. And it sets expectations: a reader who picks up your book because it was compared to a slow-burn, closed-door small-town romance will punish you in reviews if it is a fast-burn explicit one. That is why the match has to be on the reading experience — tropes, heat, tone — and not on surface details.
Romance readers choose by trope. A comp that shares your setting but not your tropes is a false friend: a Regency with a marriage of convenience and a Regency with a wallflower-and-rake slow burn serve different appetites. Match your two or three load-bearing tropes. The romance tropes demand chart shows which ones readers name most.
Heat level is the single most common comp mismatch. Readers of closed-door and readers of explicit romance overlap less than authors assume, and tone (rom-com light versus angsty) splits them again. Check the reviews of a candidate comp for the words readers use about heat and tone, and make sure they are the words your book deserves.
Published in the last two to three years, with strong review counts and visible category ranks in your lane. A megaseller is not a comp; it is an aspiration, and it makes your positioning vague. A ten-year-old title reflects a shelf that no longer exists.
Look at the Amazon categories the comp actually ranks in. If they are the categories you want, the comp is confirming your positioning. If they are not, you have either the wrong comp or the wrong plan.
| Method | What it gives you | What it cannot tell you |
|---|---|---|
| Amazon search + also-boughts | Free; seeds from a trope phrase; the store's own neighbours for each candidate | Whether the lane is crowded or open; which of a comp's tropes readers actually care about |
| Goodreads shelves + reviews | Reader vocabulary: how real readers describe the candidate, and which shelves they put it on | Sales strength; recency of the shelf it sits on |
| BookTok and Reddit recommendation threads | What readers are asking for and recommending right now, in their own words | Anything systematic — it is anecdote at volume until it is counted |
| Keyword / category tools (Publisher Rocket, K-lytics reports) | Competing titles per keyword and category; subgenre sales trends | Trope-level matching; whether reader demand for a comp's stack is served or unmet |
| Tropesmith Map | Comp titles three ways (trope stack, heat and tone, target shelf) from 229,831 registry titles, scored against live reader demand versus supply in your lane | Amazon's own click and sales data — no third-party tool has it |
The honest routine for most authors: seed candidates from Amazon and BookTok, verify them against Goodreads reviews, and use demand-versus-supply data to decide between finalists. If two comps both pass the four tests, prefer the one sitting in the lane where reader demand is running further ahead of supply — that is where your book has the most air.
Comparing to the biggest book in the genre. Choosing on setting rather than trope. Ignoring heat level. Using a comp from a decade ago. Picking a comp whose readers would be disappointed by your actual book. Every one of these is a positioning error that shows up later as poor read-through and hostile reviews — cheaper to fix at the comp stage than after launch.
A Tropesmith Map scores your exact trope stack on live demand versus supply — and names the gap you can own.
Build my Map → See a real sample Map first →Comp titles (comparable or comparison titles) are existing books a reader of your book would also love — the "for fans of" line. Agents and editors use them to size a market; indie authors use them to pick categories and keywords, target ads, write blurbs and brief cover designers. A good comp shares your trope stack, heat level, tone and approximate length, and was published recently enough to reflect the current shelf.
Two or three well-chosen comps beat a list of ten. For a pitch, two; for positioning a self-published book, three to five — enough to triangulate your categories, keywords and ad targets without diluting the signal. Each comp should be doing a different job: one for trope stack, one for tone or heat, one for the subgenre shelf you want to sit on.
Not megasellers. A comp that sold millions tells an agent nothing except that you are ambitious, and tells Amazon's ad auction to charge you a fortune. The sweet spot is a book published in the last two to three years that is visibly succeeding in your exact lane — strong review counts, ranking in your target categories — without being a household name.
Search your main trope phrase plus subgenre ("grumpy sunshine small town romance"), open the top results that are not megasellers, and read the "customers also bought" and "products related to this item" rows; then check the categories each one ranks in. Repeat from two or three seeds. It works but it is slow and it cannot tell you whether the comp's lane is crowded or open.
Yes — a Tropesmith Map includes comp titles three ways (closest trope stack, same heat and tone, same target shelf), drawn from a registry of 229,831 titles with 67,492 book-trope tags across 11,574 of them, organised into 138 genre lanes and checked against what readers say in 2.7M reviews. You can also enter your own comps at intake and the Map positions your book against them. See how it works or a sample Map.
Registry figures on this page are drawn from Tropesmith's book registry and reader-demand engine. Part of the market intelligence hub.