I can tell you that one-night stand romances with happy endings are a guilty pleasure of mine. Harlequin is a powerhouse in this niche, especially their 'Blaze' and 'Dare' imprints, which specialize in steamy, contemporary romances where sparks fly fast and love blossoms unexpectedly. Carina Press, an imprint of Harlequin, also publishes a ton of these—think 'The One Night Stand Before Christmas' by Jules Court.
Another great publisher is Entangled Publishing, particularly their 'Brazen' line, which is all about high heat and emotional payoff. Books like 'One Night Stand' by Claire Contreras or 'The Hookup' by Kristen Callihan fit perfectly here. If you’re into indie authors, platforms like Kindle Direct Publishing (KDP) are flooded with self-published gems, like 'Just One Night' by Lauren Blakely. These stories often blend humor, chemistry, and a satisfying HEA—perfect for a quick, feel-good read.