How do I start? Are there repositories of images of actual aliens, or are all extant internet images CGI or photoshop? Are there real-world videos proving the existence of such? Biblioteca Pleyades is too big and complex to know where to begin, even though I'm certain they have more info on the topic of aliens than any other website.

Mostly, I am looking for:

Books

Video series (preferably not YouTube)

Documentaries

Trustworthy websites

Known researchers (my great-grandmother was a ufologist from 1942-1968, I want to find others like her)

Thanks in advance!