We worship The God and Goddess. The two of them are seen as equals. All other Gods, such as Anubis, Isis etc are seen as personifications of the God And Goddess, because the God can be healing and death at the same time it is easier to invoke the part of him you want to use in you ritual. You might feel more in touch with for example Anubis than with Isis, go with your gut feeling when you choose a God or Goddess to invoke, you can always go with the one of the Archangels rather than the God since they are the close messengers of God. There are a couple of books you might consider looking at
Goddesses by Sue Jennings
The Wiccan Handbook by Susan Bowes
To Ride a Silver Broomstick by Silver Ravenwolf
A Guide for the solitary Practitions by Scott Cunningham
Hope this helps