Good post.
The best current author on this topic (imho) is Ryan Musgrave-Evans.
https://www.amazon.com/Children-Orion-Cryptoterrestrials-Ryan-Musgrave-Evans/dp/B0932CX9WM
https://www.amazon.com/Clan-Black-Star-Cryptoterrestrials-World/dp/B0BS8ZZM8G
Podcast discussing him here:
https://podbay.fm/p/fearscape-paranormal-podcast/e/1643785200
Podcast interviewing him here:
https://podbay.fm/p/the-unexplained-with-howard-hughes/e/1638438004
Yes, Frank’s post is excellent. So is yours, thank you for the links!
Thanks very much.