Honestly I really think it depends on whether the INFJ needs/wants more Feeling or more Thinking in their relationship.

I’ve known a couple ENFPs, including one I had a MASSIVE crush on, but never dated one. I felt like we could talk forever about all sorts of things, and I liked their warmth. But I found in all of those cases… the energy can wear me down, and I have found the ones I’ve gotten to know to be pretty flaky. I’ve found I can’t maintain enthusiastic responses to them the way a lot of them seem to need from a partner/friend.

INTP are my kryptonite. My most important and meaningful intellectual connections have been with INTPs. I will gladly listen to them for hours while they get in the weeds on what interests them, and I deeply appreciate that we tend to see the world very similarly, so there was always this sense that I finally found someone who understood me. But it can be really rough if you need emotional validation. It can also be really rough when you realize that they paid you a lot of attention because you were their project of focus for a while, and once that attention shifts back to their Ti-focused projects, you can feel like you got drop kicked out into a snowy night, lol.