However, if it were to be confirmed that she would have a significant other, a boyfriend, or whatever I'd want to see her with Kiba.
To me it just seems that he gives more of his heart to Hinata and he's not afraid to let her know he cares for her, nor is he afraid to show her his softer side. He's one of the few people that really believe in her and are patient with her personality.
That makes me think if any couple in Naruto is possible, I'd place my bets on Kibahina
