Here are some research resources we think you’ll find very interesting.

These two very deep resources are releases the CIA and FBI declassified
after several decades of top secret classification.

Stargate – CIA Index

U.S. Army unit established in 1978 at Fort Meade, Maryland, by the Defense
Intelligence Agency and SRI International to investigate the potential for
psychic phenomena in military and domestic applications.

FBI Records – The Vault

These documents are part of the official FBI UFO files.