Even though I don't ship Handon (unless it's Handosie [Hope x Landon x Josie]); mostly Rebekah because I'd think she'd be happy that her niece found love unlike Rebekah was allowed to for the longest time (cause of Klaus).
But out of all of the one listed above; Rebekah (for the reason I stated above), Kol (as the person above me said, they could relate to being outcasts and such), and Marcel (cause I want and would love to see protective brother Marcel).