From All About Romance:
I love romance for the same reasons I love other genres: intriguing characters with problems, who need others’ help to find solutions. In romance, the main romantic couple are generally the intriguing characters, and they help each other to solve the problem, whether it’s loneliness or something more complex, like thwarting that evil old uncle who’s trying to divert your inheritance to his unsavory pals. In fantasy, there may be a couple of main characters, or there may be a larger group with more complex interrelationships.
This post is meant to provide a beginner’s guide for romance readers who’ve wanted to try fantasy but were feeling daunted by all that’s available; hopefully, those who are fantasy readers already might find something new, though I’m focusing on older, ‘classic’ books that one might not come across in casual browsing.
If you’re in search of epic fantasy, Kate Elliott has a couple of series that should appeal. Beginning with Cold Magic , she created a world in which Carthage never fell, with consequent huge differences for Europe and North and South America; there’s an “opposites attract” romance as well, though not until the second volume.
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Many romance readers already love the addictive work of Lois McMaster Bujold, either her long-running and devourable Vorkosiganscience fiction series, or her more recent fantasy series, Chalion  and The Sharing Knife . Bujold is known for her large casts of likeable characters who face seemingly unsurmountable challenges…until they conquer those challenges in ways you would not expect. Her series are especially fun because they reward re-reading.
Link to the rest at All About Romance