Using hashtags in filename: anything I can do with this?

I create hashtags when naming files that I save to my Mac. I have a lot (thousands) of PDF files with author names, years, topics, and more.
For example, I have a PDF:
#vanderdeiden #thompson #cantley #2009 Understanding the Warburg effect - the metabolic requirements of cell proliferation #seyfried #smt #mmt #mitochondria #warburg
Other topics may include #exercise, #nutrition, #igf, #mtor, ... and so on.
Is there any way that Hazel can create folders or some organizing system where I can see an alphabetical list of all of the different hashtags I created?
It would be a big help for me, or anyone looking for a topic in particular, and then seeing what files have the associated hashtag.
Ideally, I might look something like an alphabetical index that are sometimes provided on web pages, or the back of a book.
Any help is appreciated.
For example, I have a PDF:
#vanderdeiden #thompson #cantley #2009 Understanding the Warburg effect - the metabolic requirements of cell proliferation #seyfried #smt #mmt #mitochondria #warburg
Other topics may include #exercise, #nutrition, #igf, #mtor, ... and so on.
Is there any way that Hazel can create folders or some organizing system where I can see an alphabetical list of all of the different hashtags I created?
It would be a big help for me, or anyone looking for a topic in particular, and then seeing what files have the associated hashtag.
Ideally, I might look something like an alphabetical index that are sometimes provided on web pages, or the back of a book.
Any help is appreciated.