I recently became aware of the existence of a large gnostic school in Latin America (and wordwide) founded or re-launched by a Venezuelan-mexican great master between the 50-70s (I won´t type his name, you can google it). It has schools in all the spanish speaking countries and others too.
Before that... I had only heard about from Terence McKenna talking about proto christian gnostics or pagan christians that were contemporary to the roman empire, I´ve always love hearing whose old tapes from McKenna talking about Alchemy, mercury, witchcraft and gnosticism...
Also, I am a fan of the "Law of One: Ra material" (which has a lot of connections with new age and UFO community too) , I´ve found many points in common between the two: tarot, astronomy, tree of life or kaballah, tantric sex, alchemy, chakras, meditation, hermeticism, vibration, dimensions, etc.
They also talk a lot about astral projection.
I wonder what do you mean about "becoming" a gnostic, in some gnostic schools initiations are required, I´m interested in knowing how gnosticism works worldwide.