Wattpad's one-shot scene is surprisingly good for a quick fix, though you've got to wade through a lot of tropes to find the standouts. I often filter by 'completed' and sort by 'reads' to get the popular ones, but sometimes the real gems are older stories with less traction.
Lately, I've been into mood-specific reading, and one-shots are perfect for that. A story called 'The Way the Light Fell' about two people meeting on a late-night train was exactly the atmospheric, bittersweet slice-of-life I needed—under 2k words and it stuck with me all day. Another favorite is 'Radio Static,' a sci-fi piece about the last broadcast from a dying space station. It's less about romance and more about existential dread, which is a nice change of pace.
The platform's strength for one-shots is in those tight, emotional character moments that don't need a whole novel's worth of setup. I'd skip the 'bad boy' collections and search for unique tags instead, like 'platonic' or 'historical flash fiction.'