Great article! Here are a couple of other books on the topic (which is one I've always been fascinated by).

Imagine Heaven by John Burke - This one is my favorite because in some ways it's a bit of a summary on quite a few others, and it's supported by Biblical references

Proof of Heaven: A Neurosurgeon's Near-Death Experience and Journey Into the Afterlife by Eben Alexander

I have both Audible and soft-cover versions of both of these.