Romance novels for chill reading totally depend on your mood, I think. Sometimes you want that familiar, cozy blanket feeling, and nothing beats a small-town setting with a bakery or a bookstore. Think 'Book Lovers' by Emily Henry but maybe even lighter—something where the biggest conflict is whether the town's annual pie contest gets sabotaged by a rival, not some huge life-or-death drama.
For a real relaxed vibe, I often skip anything with high-stakes suspense or a ton of angst. Miscommunication plots that last for 300 pages are the opposite of relaxing for me. I'd rather have characters who are basically competent adults who fall in love while doing something low-key, like renovating a house or running a family business. The process itself is soothing.
My personal go-to for pure comfort is the 'Graceling Realm' books but specifically the romantic subplots, or really any fantasy romance where the world-building is solid but not overly complex. Knowing the rules of the world lets me sink in without stress. Audiobooks of these are perfect for lazy afternoons when I'm doing chores; the narrator's voice just carries you along.