just checked too. Seems that this particular company added an Identity scale to the basic personality type framework. So everyone is either Assertive or Turbulent.
https://www.16personalities.com/articles/identity-assertive-vs-turbulent
not quite sure where Iād fall on that one, at the moment.

I hear you.
Well, back to your original point:
What would we suggest for an INFP.
I am an INFP and hmmmā¦I think thereās a lot of diversity within the type.
Butā¦Iām a big fan of Alchemist. haha.
I know itās typically associated with spiritual or even mystical practices. And the name is Alchemist.
But the word that captures how I see Alchemist is āSoulā. The deep, enduring values and patterns within your mind and heart. These seem to correspond to the function of Introverted Feeling.
I found that as soon as I started playing Alchemist, it was like someone had turned the focus controls and the lines of things all felt clearer. At that time, I said that for an INFP, Alchemist is the equivalent of Emperor. This is because I think that we get our sense of purpose, energy, motivation from that sense of being in touch with our deepest guiding values and inner experiences.
Iām right at the midpoint of Alchemist now. On a break from subliminals until next Monday, and on that day, Iāll begin Alchemist Level 3. So I havenāt gone through the whole thing yet. Weāll see where it leads.
Other than though, for the INFP, one of your main strengths is your contact with your own inner subjective sense of things. One goal is to learn to respect the inner sense and to trust it. Society does not always encourage us to do this. I mean society will talk a good game. But when the shit hits the fan, that inner voice often gets thrown out. But the INFP doesnāt really have that luxury. You canāt turn off that inner sense. (Iām using hyperbole.) Itās harder to ignore it. We need to make friends with that inner sense and to harness it into whatever weāre doing. Otherwise, weāll tend to feel an acute sense of being pulled in two (or three or four orā¦).
So, try to forgive the recurrent dizziness, nausea, and fainting spells, and do your best to honor the gifts of that Oracle of Delphi. Cause theyāre not going anywhere. 
That for me is the province of Alchemist.
p.s. Now with the Q Store, there are module-based alternatives to Alchemist. So those are other options as well.