I can see arguments being made for Pocahontas for a lot of signs aside from any of the earth signs--she is no parts judgemental, levelheaded, or practical.

Pocahontas could be an air sign because she's so flighty and indecisive--- however, she is very passionate and not afraid to face her future, even if it confuses her.

I don't really see Pocahontas as a knowledge seeker like the air signs are, sure she's got her beliefs about the earth and how we should treat it, but she's mostly a big goofball until John Smith shows up, not really taking anything seriously and definitely not wanting to be tied down-- two qualities of the adventurous Sagittarius.

While air signs are mentally adventurous, Sag's are actually physically adventurous and extremely impulsive; they may one day just decide to get up and move to a completely different country out of the blue. Sag's are known for being highly independent and having serious commitment issues-- this SCREAMS Pocahontas, who can't ever decide which side to pick.

Sagittarius' have a lot of internal personal power and strength and they are known for being very hard to tie down and commit. They value freedom first and foremost (as a rising sag, I panic at any sort of commitment).

Also, side note, but I notice Sagittarius' tend to make these dramatic
posts on Facebook about literally anything including what kind of cereal they ate this morning and the deeper meaning behind it and I can see Pocahontas doing that.

Since Pocahontas is my favorite princess, I like believe in this. Irene Bedard says that the creators put a lot of her personality in Pocahontas. Irene shares not just the same Zodiac but the same birthday(July 22nd). Irene Bedard seems to be more typical Cancer than me( while I am neither a typical Leo, Leo fits my personality more than Cancer), warmer and more nurturing. Sure, it doesn't proof anything but still.
Due to semi-canons sources Pocahontas is 18. Meaning born on July 22nd of 1599( just assuming) makes Pocahontas Sun Cancer, Moon Leo.
I can agree with Sagittarius too though. Because this Zodiac is often associated with free spirit and warm heart which Pocahontas definetely has. I also agree with princesslullaby that Pocahontas isn't much of knowledge seeker.

^ I feel like Cancer is sooooooooooo illfitted to Pocahontas who has zero attachment to home life and doesn't have a domineering personality

Hard to pick, nothing fits her to a tee. I thought she was a fire sign at first then ended up changing my mind to air, but really she shows elements of both (she has the passion of a fire sign but then her indecisiveness lets her down here too). She places enough value on equality to be a Libra, so that's what my choice ended up being.