Not actually a fan of the term 'spirit animal'. That belongs to a culture that I'm not part of. IF I ever talk about things like this, I'm more likely to use the term 'Patronus'. Because, yes, I read Harry Potter, same as everybody in my time.

In that case, though, I tend to consider my Patronus to be a dog of some sort. Either a Golden Retriever or maybe a German Shepard.