4th year. James corners Lily in the common room, leading to a discussion about Shakespeare. Canon-compliant. One-shot. Lily/James.
3rd Year. "Yes Lily was smart, but she had never felt the need to 'beat' another student at anything. Well, with one notable exception." Lily/James. One-shot.
Second Year. Remus' friends confront him with a truth he wishes would stay hidden. But their reactions are beyond anything he ever expected. One-shot, MWPP era, Not romance. Rated T for a single joke, just to be safe.
"To an outside observer, Lily Evans didn't look particularly distressed." One-shot. Lily/James, but romance isn't the focus. Canon compliant, as far as I am aware.