I think we could do ranks like the divine chain of being (The Great Chain of Being is a hierarchical structure of all matter and life, Thought to be decreed by God, in medieval time) So the ranks from the highest rank downwards:
God/Devils
Angel/Demons
King/Queen
Nobles
Assassin
Simple
The last two ranks may need adjustment but it would go something like this. Do give me advice, thanks for reading!