I am INFP, but I test INTP more than anything (I blame the crappy tests). Even on cognitive functions tests, I will test Fi-dom, but my Ti is pretty high.
I relate to INFJs more though. Their functions can seem like some kind of inverse of mine: me turned inside out. It seems they sometimes have similar perspectives, but for different reasons. The main diverging I feel with INFJs is their Fe, which is something I don't use well.
I also relate to ENFPs because of similar function use. I am very much introverted, but when I am tipsy, I kind of feel like an ENFP
"Charlotte sometimes dreams a wall around herself. But it's always with love - So much love it looks like everything else. Charlotte Sometimes - So far away, glass sealed and pretty." - The Cure