Charlotte Pudding could be a likely candidate. She has a complex personality. She's initially deceptive but later shows her true self. Luffy might be attracted to her vulnerability and the good side of her that emerges. And Pudding could be drawn to Luffy's honesty and his ability to see the best in people.
In the comics, Daredevil's marital status varies. But one notable character he marries is Elektra Natchios. However, the comic universe is complex, and there might be alternate story arcs with different spouses.
Thor's marital partner in the comics is not always consistent. Sometimes it's Jane Foster, and in other cases, it could be someone else. It really depends on the creative direction of the particular comic series.