Some, like SaLuSa of Sirius, will tell us that they are detailed by the Galactic Federation of Light (GF) to speak on its behalf.
I am SaLuSa from Sirius, and I along with my companions represent the Galactic Federation where contact with you is concerned.
According to Metatron:
“I AM [Archangel] Metatron, greeting you in your vibrational home, that of the 5th dimension. …
“We are your family… we are the realm that you now inhabit and we come with you, to walk hand in hand into this familiar, yet foreign land. This new territory that you have dutifully claimed as your own now holds you in vibrational alignment with all that is God’s glory.”