Have any sources? I’d love to read what you are thinking about.
I haven’t used psilocybin in a clinical setting but have gone through an alternative psychedelic-assisted therapy process. Very interesting results and many positives.
Not necessarily neurogenesis, but evidence of neuroplasticity: https://news.ycombinator.com/item?id=48030098
There's not a lot, unfortunately. This paper is a literature review and the claims are weak, but there's something there that should be investigated further: https://pmc.ncbi.nlm.nih.gov/articles/PMC12392120/
Paul Stamets has evangelized psilocybin + lions mane + niacin for years in a microdosing format, but again, the research is lacking largely due to prohibition.