>>53933432As First Apprentice, she seems to get special assignments. Be it phoenixes, troublesome detectives jumping realities, or underworldian beasts (She said in the past the spikes on her collar/hood are teeth from one.) She's never talked about other fantastical races.
But it seems like most of her normal work is just human souls (with the exception of suicides). Collecting them and guiding them to the Underworld for their sorting and placement into whatever afterlife or reincarnation awaits.