Work as a part time faculty at a nearest dental school with a graduate endo program. Show your face to the endo department. If your pre-doc clinic faculties do not like to do endo, then you should aim to be known as the attending who can do pulpotomy/pulpectomy. Then get to know the endo faculties at that school. Take CEs and visit their offices.How does one secure an "in?" I was thinking of writing a best selling autobiography. Hopefully the story will be compelling enough. Heck, I'll even take depressing and pitiful enough. Shopping some titles. I was thinking, "By word of mouth: the navigation of life's canals"
I think that would be the best "in" scenario if you do not have any connection. Another way would be to get to know your local endodontist, and then expand your connection from there.