Do you have any examples from that blog? I started reading, and while it is very interesting, there are a lot of articles, and I have trouble finding the ones implied in your comment.
I started reading articles randomly, but the most efficient way I found is to take the archives of "narcissism", and start from the oldest post. Here's a list of link of the most relevant according to me:
https://thelastpsychiatrist.com/2012/10/the_story_of_narciss...
https://thelastpsychiatrist.com/2008/06/hes_not_yelling_at_y...
https://thelastpsychiatrist.com/2008/07/being_the_main_chara...
https://thelastpsychiatrist.com/2010/11/a_generational_patho...
https://thelastpsychiatrist.com/2010/02/the_other_ego_epidem...
https://thelastpsychiatrist.com/2010/12/infidelity_and_other...
https://thelastpsychiatrist.com/2010/12/taboos_are_the_ways_...
https://thelastpsychiatrist.com/2012/06/amy_schumer_offers_y...