Readers don't shop for books. They shop for tropes.
Nobody browses Amazon thinking "I'd like a well-structured narrative with a satisfying arc." They think enemies to lovers. Fated mates. Grumpy sunshine. Small town, second chance, only one bed.
The trope is the promise, and the promise is what gets clicked. It's what goes in your blurb, your keywords, your cover, and your ads. Match what readers in your subgenre are hunting for and the book has a chance. Miss it and the book is invisible, no matter how well you wrote it.
Worse than invisible is close but wrong. A reader who picks up your book expecting one promise and gets another doesn't shrug. They leave a review saying it wasn't what they expected, and that review costs you every reader after them.
And the tropes keep moving
Things move fast here. A pairing that felt fresh a year ago can be on half the covers now. Something that used to be niche has quietly become the thing readers expect. Subgenres split, borrow from each other, and reset what counts as standard.
Which is the problem with most trope advice. It's a list somebody wrote down once, in a course recorded two years ago or a blog post from 2023, and it's been repeated ever since by people who never went back to check.
Writing to a stale trope list is how you end up with a book that feels dated on arrival.
So Trope Radar goes and looks
Name your subgenre. It opens that category's current bestseller list, reads the top twenty listings, and pulls out what those books are promising readers right now.
Not what tropes exist in theory. What's on the page of the listings that are selling today, with a real phrase quoted from a real blurb next to every one, and the date stamped on the output so you always know how fresh it is.
What you get
How it's different from Genre Scout
People ask, so here's the straight answer. These two tools ask different questions, and plenty of authors use both.
| Trope Radar (free) | Genre Scout | |
|---|---|---|
| The question | If I write here, what has to be on the page? | Should I write here at all? |
| What it reads | Titles, blurbs, and covers of the current bestsellers | The market itself: competition, pricing, categories, keywords, where the openings are |
| What you walk away with | A trope map for one subgenre, in the chat | A full research report you keep, plus niche comparisons and the ability to re-scout later and see what changed |
| Best for | Knowing what readers expect once they land on your book | Deciding which subgenre deserves the next six months of your life |
Trope Radar will never tell you a rank, a revenue estimate, or whether a subgenre is too crowded. It isn't being coy, it just doesn't read that. If those are the questions keeping you up, that's Genre Scout's job.
Think of it this way: Trope Radar tells you what's on the page. Genre Scout tells you whether the page is worth writing.
Questions, answered
Yes. Join Royalty Rebels and it's in there, yours to keep, with a personal use license that covers every book you write with it. No extra charge, no upsell inside the plugin.
Inside Royalty Rebels, the plugin community. It's $7 a month, cancel whenever, and Trope Radar is sitting in the classroom the moment you join.
Membership also comes with the discount code that works on every paid plugin, so it tends to pay for itself on the first purchase.
Claude Cowork on a Claude Pro or higher plan, plus the free Claude in Chrome extension for the live scan. Without the extension it still runs, it just tells you it's working from genre convention instead of today's listings.
As current as the moment you run it. Every scan reads the live bestseller list and stamps the output with the date, so you never have to wonder whether you're looking at last year's tropes.
Explore More Plugins
Trope Radar is included with Royalty Rebels, the plugin community. Seven dollars a month, cancel anytime, and it's in the classroom the moment you join.
Join Royalty Rebels $7/mo · Trope Radar includedMembers also get the discount code that works on every paid plugin.
- The Trope Radar plugin
- Live scan of any subgenre's top 20
- Four buckets plus the pairings that work
- A branded Trope Intel Report (PDF) you keep
- Real quoted phrases as evidence
- Three story angles from any two tropes
- Personal use license, yours to keep
Works in Claude Cowork. Requires a Claude Pro or higher plan. The live scan uses the free Claude in Chrome extension.