From the Farsight's projects / Intelligence Briefings we have 3 Major players around Earth:
1) Reptilian Empire
2) Orion Empire
3) Galactic Federation of Worlds.
But from over 50 years of research by Dr David Jacobs PhD - http://www.ufoabduction.com into abductions and first hand research.. he says the that hierarchy is something like this:
Insectellins (Mantis beings) -> Reptilians -> Grey types
Basically the Mantis type beings are the top of the chain of the current negative type ET forces interfering in Earth affairs. Indeed Dick Allgire encountered one in the Giza Project,
What general faction do these beings come under? Reptilian/Orion/Other.