>>108723463Ozai/Ozumi because you can literally dick the evil out of her and prevent the entire series. Both the show and comics showed he started to crack after his wife started being unfaithful and left him. Instead of being a thot like Azula's/Zuko's mom, you double down dick that woman while cuddlefucking the madness out of her caused by the grief/loneliness.
Alternatively actually help the firelord win and defeat Aang by learning Spiritbending or Advanced Bloodbending to prevent Korra from fucking up the future. A water tribe man marrying the Fire Lord and uniting the two tribes for world domination is better than anything Korra.