And do believe that I, this random guy on the internet has a soul
I personally don't believe that I anyone else has a soul. From my standup I don't se any reason to believe that our consciousness and our so called "soul" would be any more then something our brain is making up.
The book that inspired me a lot was a translation of On Life after Death by Elisabeth Kübler-Ross first published 1984.
I've got another book by her but that is very different and more focused on research.