A cat or a dog, I don't own either as my mum is scared of cats and here we can't let dogs lick us or touch a dog's saliva as it's considered "dirty"
We and/or I might get a cat when I'm older (My dad said if my mum says yes to a cat in the house we can get one, though I doubt that would be anytime soon) so if I could "ethically" own an animal that I consider out of reach with my current situation I'd wish for it to be a dog, maybe even a fox, I don't know how I'd take care of it though