I found an interesting religious resource at my local library! 

Encyclopedia of Angels, Spirit Guides and Ascended Masters: A Guide to 200 Celestial Beings to Help, Heal, and Assist You in Everyday Life by Susan Gregg. 

This book includes details of where the angels are mentioned in religious text, how to invoke them, descriptions and associations. However, as depictions vary by author, I wouldn’t use this as your only reference to these celestial beings. But it’s pretty good!