I feel like there are so many supernatural stories where the person who can see ghosts is very timid and introverted (Oh My Ghostess for example). Are there stories where it's the opposite? Instead the person who sees ghosts is very extroverted?

Try taiwanese drama The Fearless. MC is a normal gangster -- bossy and wild and with minions a plenty-- thrn he dies and lives again only to have the ability to see ghosts. But this doesnt center on romance.