If you're looking for someone to criticise your work (maturely of course) I'm all for it, but other than that, I've no ties to any worlds where you could take this to be published.
However, I find the idea quite interesting. Reading a book about real people of certain enneagrams appeals to me more than reading a book about enneagrams, if you catch my drift. If it's a new idea, I imagine there would be publishers out there willing to put it out there.
What I can tell you about publishing is that you need to be very careful with it(If you did not already know :P Sneaky gits they are).
You need to know the publishers intentions for marketing and putting your stuff out there. Wether your product is ending up where it is supposed to be or not. Because once contracted to a particular Publisher, it's not like you can simply contract another Publisher if the previous Publisher failed to deliver. So even though you might feel like taking the first offer on the table it might be a good idea to research the particular Publisher and if possible its clients.
Enneagram Monthly seems like a great place to get recognition for your project, but it seems it would be best if you've managed to publish it before hand before seeking such recognition. If you are looking to get revenue from the project.