Funny how Yangchen is the last person to get with a guy.

All are canon except for Yangchen and Kavik's relationship

So for all we know she could’ve been with a woman too lol.

@KendixPL it is heavily implied, also their relationship doesn’t have to be romantic

@Thehublord7 even if it's implied, it's still unofficial.

I won't get into the debate about whether a relationship has to be romantic, but that's generally the point.

I really wouldn’t call it a debate, friends aren’t romantic. That is a non-romantic relationship.

In the survey, most relationships were romantic. When we talk about relationships in this context, we talk about romantic ones. You used the word "ship", which (at least in my region) is used for romantic relationships.

Personally I loved Kavik and Yangchen's chemistry together so they are at the top for me.

My list would be

Kavik and Yangchen

Korra and Asami

Roku and Ta Min

Rangi and Kyoshi

Katara and Aang

Kuruk and Ummi

None.

I didn't know Yangchen was in love with someone. I thought she was single.

More couples of Avatars x (non-avatars or avatars)

I don't know if there is an avatar (or any character) who is single.