Okay, this is one of my favorite rabbit holes to dive into: arranged marriages pop up across so many period romances, but they wear different faces depending on the era and culture. In Regency-era stories you'll see family pressure, the marriage market, and pragmatic unions—think Charlotte Lucas’s pragmatic match in 'Pride and Prejudice'—that’s a classic example of marriage as social strategy rather than pure romance.
If you want richer, explicit arranged-marriage plots, sweep into Scottish- or medieval-set romances where alliances, clan politics, or survival force weddings. Diana Gabaldon’s 'Outlander' begins with a marriage born of necessity and protection, and Julie Garwood’s medieval romances often use forced or negotiated unions as central conflict. For something with more social-political arrangements, 'A Suitable Boy' by Vikram Seth is a mid-20th-century epic where arranged marriages and family match-making are core themes.
Genre-wise, look for tags like 'marriage of convenience', 'forced marriage', 'marriage alliance', or simply 'historical arranged marriage'. Georgette Heyer’s Regencies repeatedly showcase matchmaking and socially engineered matches; Lisa Kleypas and Mary Balogh write great Victorian/Regency-era romances with pragmatic or contractual marriages. If you want to branch out, there are also historical fantasies and international historical novels (Indian, Middle Eastern, East Asian settings) that treat arranged marriages differently: as cultural norm, economic necessity, or political tool. Happy hunting—I love how the trope can be tender, messy, or downright scandalous depending on the writer’s take.