>>3947904well, i would start with the videos in
>>3947715https://archive.org/details/SecretsInPlainSightVolume2this is the second volume of the first video which i didnt watch yet, but plan to.
then look into graham hancocks stuff, fingerprints of the gods and quest for the lost civilization are really good, and i assume the rest too.
i was recommendet these 2
https://www.youtube.com/channel/UCsSI1nsPJukyW5dIs9RytGghttps://www.youtube.com/channel/UCqLPTe6eEeBP10Zhu5p-0cQeven though i admit i didnt look into those yet.
other than that i dont have much. look into out of place artifacts for some stuff. also look into the legends and myths of cultures across the world which happen to be really similar. at some point stuff seems to be falling into place on its own