I think I've said this before, but INTJs tend to be the salt to my pretzel. They usually take life at a similar pace, usually come to many of the same conclusion I do, offer insight, plan well, troubleshoot well, yin my yang, etc.
I've never had a best friend who wasn't INTJ. I know one online, and she seriously thinks we'll meet someday. She just loves me. I'm not so sure we will, but I'm not opposed, lol.
I also know one irl, and she's my best friend in de flesh.
I like INTJs a little /too/ much sometimes! But that's ok, cause they usually like me just as much.