Sorry,

Spirit mediums are frauds and I think you know it.

I know that many and probably all are, so I did not reference them.

People who report near-death experiences of the "seeing the other side" variety are copycat deludees on the whole.

I certainly challenge that baseless assertion disguised as fact.
Do at least some reading. You could start with Wiki.
https://en.wikipedia.org/wiki/Near-death_experience

A couple of interesting "past life" cases,
https://www.psychologytoday.com/blog/feeling-too-much/201412/children-who-seemingly-remember-past-lives