Sortilege - The drawing of lots.
Lithomancy - The use of runes, stones, or other objects, or the reflected light from said objects.
Augury- The analysis of behaviors and flight patterns of birds.
Cartomancy - The use of a deck of cards.
Oneiromancy - The receiving of prophetic dreams.
Scrying - The use of reflective surfaces such as mirrors, water, crystal balls, or polished stone or metal.
Tasseography - The reading of tea leaves, coffee grounds, or wine sediments.
Chiromancy/Chirognomy - The reading of palms/the analysis of the whole hand. A polarizing form of Divination, regarded by some as a mere party trick, while others account it a legitimate method.
Item of note: In order for a high priestess to divine successfully, two circumstances must be true: 1. she must tap into her own life-force, and 2. she must be in possession of awakened Second Sight.