Stephen Ede |
Darkness and Metal are the two 3rd party Spirits I know of.
http://www.d20pfsrd.com/classes/hybrid-classes/shaman/3rd-party-shaman-spir its/ascension-games-llc-shaman-spirits/metal/
http://www.d20pfsrd.com/classes/hybrid-classes/shaman/3rd-party-shaman-spir its/ascension-games-llc-shaman-spirits/darkness/