I had an ISTJ friend once. It ended up not so well. Although we had some common interests and views I feel like we couldn´t get to comunicate well, there were a couple of things I disliked about him too, like he was an inconformist but wouldn´t go great lenghts for his own principles and desires, non if possible. It wasn´t a healthy friendship either but mostly because we were in dark places of our lives at that time.
In the end, not the most enjoyable friendship IMO. I think INTPs get along the best with INTJs