My answer might surprise people since I'm an outspoken atheist and naturalist on here.
If there is life after death in some way I do NOT believe it would be supernatural! There would be a perfectly natural explanation that we can't figure out yet.
I have seen very convincing stories for reincarnation and even more so in a massive way for NDEs.
If and again if.... it is true then there are two things that need to be done.
1. A double-blind trail to prove it exists. For instance and open book in a room where someone is doing a 'Flatliner' type test. The unknown book can then be read by the so-called NDE person and then they can relay that etc.
2. The most important of all going beyond point one is to establish WHY. What natural explanation is there?
If you can prove one two is a matter of research.
When it comes to NDE and things like Astral Projection like the fictional character Fox Mulder on X-Files:
"I want to believe."
But I need evidence. Don't let that stop people from doing double-blind trails.