I wholeheartedly recommend the work of Mark Passio to everyone.

Over the course of years, listening to many thousands of interviews and presentations, I've found that these "popular" researchers break down according to the "80-20 rule" (estimated values):

• 80% are straight up disinfo with material written in some Langley basement office
• 16% are honest but in error because they foolishly base their work on the 80% disinfo peddlers
• 3.2% are honest and have avoided the disinfo, but are in error because they make mistakes like we all do
• 0.64% are honest and accurate, but lack importance because they are incorrectly tied into the larger context
• 0.16% are honest, accurate, important, and insightful

Mark Passio falls into this last category.