Hello Highlander!
I am afraid I don't yet have a
real career, but I'm working on it
That being said, maybe I have some insights to offer that would be helpful.
The stereotypical "best" career for an INFP would most likely have be a writer of some kind - poetry, children's fiction, or adult fiction... some INFPs are capable of technical writing or grant writing, journalism, or other non-fiction writing, too. It just depends on the individual.
We all flock to the humanities, i.e. literature/poetry, classics, and even history. Not to mention the fact that the majority of us also tend to find work in the performing or visual arts - or at least (privately) desire to. Most of us know how to play at least one instrument, have a finely-tuned ear, and secretly daydream of being in a rock band, no matter what our "real job" is! Most of us doodled on our homework as kids, and consequently love sketching, painting, etc. With training, an INFP can become a forensic artist, or furniture maker. Many "crafters" are INFPs. We can make beautiful jewelry, scarves, woven baskets, and other such trinkets for some extra cash on Etsy, but aren't particularly interested in the hardcore marketing side of these things. If an INFP adequately develops their confidence and stage presence, they have the potential to become an expressive actor, really studying and getting "in the head" of their character (though this can also be taken way too far by INFP actors, to the point of identifying TOO much with the character, and falling into a downward spiral, i.e. Heath Ledger).
Graphic design or web design could be a good career fit for an INFP, because it allows them a secure line of work, while also being a creative field. I suppose the same goes for a field like photography, floral design, or fashion design/hair/makeup artistry. It is not at all uncommon for many INFPs to go into massage therapy, music therapy, or even to work with animals, i.e. vet assistant or wildlife rehabilitation (not recommended; INFP may become too attached to the animals). Really, any profession which involves producing something of beauty, or something that is going to be pleasing to others, is going to attract a disproportionate amount of INFPs.
Some characteristics of an "ideal job" for an INFP, regardless of what the career is:
1. Degree of consistency
2. Room for creativity or "personal touch"
3. Somewhat solitary, but within the framework of a greater team or company
4. Regular feedback from boss (positive AND negative)
5. Weekly to-do lists and email briefings from boss
6. Solitude while immersed in job tasks (garrulous coworkers, beware - you're distracting us!)
7. End result being something useful or beautiful that everyone enjoys or uses in some capacity
Of course, this does not even take into account Enneatypes, and how that may further influence an INFP's disposition and career goals.
