Cruelty free yarn

Hi all, I’ve only recently come across the concept of ethics / animal cruelty in yarn production. I guess I just never considered it. I’ve just read about the practice of mulesing and it’s pretty upsetting. Does anyone have any insight on how to navigate this when selecting yarn? How to easily identify if a brand is a goodie or a baddie? Or is it so common that I should just assume if a brand doesn’t specify then they’re probably not cruelty free? 🙏🏼