I imagine you'd have to spend more time on Tumblr. I've also never met anyone who claims to be an otherkin, but it's just the circles we surround ourselves with.

The only thing I know about astral projection is that it's a lot like remote login.

I can astral project.

I used to know a girl who claimed to Astral project through time. She had a messiah complex and it caused her a lot of stress. I hope she got help.

A person who was also level 2 Reikki (?) healer claimed to both astral project and being able to "summon" memories of earlier reincarnations. She seemed totally normal unless you asked about spritiuality or something adjacent. She did believe homeopathy was humbug but that chiropractors could cure depression. We was friends for long time until we drifted apart due to moving towns

I've met a few.

https://www.cia.gov/readingroom/docs/CIA-RDP96-00788R001700270006-0.pdf