You left out ‘hollow Earth’, which is also a lot more believable than ET.
I heard about that some
admiral with a birds head, kinda walked like an Egyptian ?
Somehow there Nazis involved but that was a long time ago before they escaped to the Moon
I think some Vern guy also did an expedition too... if I remember my history correctly of course
I did some more research.. Genesis 6
Mankind began to flourish on the Earth
Then says there were giants in the Earth, sons of God during those early days, and even after.
They desired the daughters of men.
Maybe Sasquatch are the sons of God and they still live in the earth