Reddit reviews You have been here before: A psychologist looks at past lives

I thought you'd never ask 😎

This is just some of my collection, any one of which would get you started, but I'd start with Dr Stevenson's stuff first:

Dr Ian Stevenson

https://www.near-death.com/reincarnation/research/ian-stevenson.html

https://www.amazon.com/Twenty-Cases-Suggestive-Reincarnation-Enlarged/dp/0813908728/ref=sr_1_1?keywords=Twenty+Cases+Suggestive+of+Reincarnation&qid=1563082984&s=books&sr=1-1

https://www.amazon.com/Where-Reincarnation-Biology-Intersect-Stevenson/dp/0275951898/ref=sr_1_1?keywords=Where+Reincarnation+and+Biology+Intersect&qid=1563083023&s=books&sr=1-1

Dr Loell Whitton

https://www.amazon.com/Life-Between-Joel-Whitten/dp/0446347620

Neville Randall

https://www.amazon.com/Life-After-Death-Neville-Randall/dp/0552114871/ref=sr_1_1?keywords=life+after+death+Neville+randall&qid=1563083067&s=books&sr=1-1

Dr Raymond Moody

https://www.amazon.com/Life-After-Bestselling-Investigation-Experiences/dp/006242890X/ref=sr_1_1?keywords=raymond+A+Moody&qid=1563083118&s=books&sr=1-1

Helen Wambach

https://www.amazon.com/Life-Before-Helen-Wambach/dp/0553254944/ref=sr_1_1?keywords=life+before+life+helen+wambach&qid=1563083173&s=books&sr=1-1

Dr Edith Fiore

https://www.amazon.com/You-have-been-here-before/dp/0698108833/ref=sr_1_7?keywords=Dr+edith+fiore&qid=1563083204&s=books&sr=1-7

Oh, I'd also check out the 4 part documentary: Life, Death and Reincarnation

Thanks to u/malibunyc for finding a low res 640x360 version of the show on YouTube, here are the links:

ep 1 - https://www.youtube.com/watch?v=u9bcNeLJTv8

ep 2 - https://www.youtube.com/watch?v=ycwZTYHqqoM

ep 3 - https://www.youtube.com/watch?v=PkcljsaaFXs

ep 4 - https://www.youtube.com/watch?v=5URv5xxSFpo

Hope these help. Others will chime in with theirs too I'm sure.