I have a feeling this might already be a thread, but, what disorders do you think most fit a specific type?
Disorders manifest as the lack of a function, usually the tertiary.
NPD - NeTi without any Fe to make you care about others beyond telling you how brilliant you are
APD - SeTi without any Fe to make you feel guilt over manipulating others and exploiting situations
PPD - SeFi without any Te to make you run your bullshit detector on all incoming data
HPD - NeFi without any Te to make you understand that your immediate reactions are counterproductive to reaching your value-based goals
OCD - TeSi without any Ne to make you realize things can work even when they aren't exactly as you need them to be
BPD - FeSi without any Ne/Ti to make you understand that people still love you when they don't constantly show it, and even when they do something that pisses you off
Schizotypal - NiTe without any Fi/Se to make you value contact with outside stimuli
Schizoid - TiNe without any Si/Fe to make you understand the need for sociality or personal upkeep (very close to Delusional Disorder)