Best I can offer is the MBTI's ISTJ type. Or possibly ISFJ, but I don't think so.
ISTJ could be described as being focused on research and problem solving in the service of the body's input needs, trying to keep the body safe from too much unknown randomness.
Most folks have only ever taken online tests, which are crap, and based on random interpretations of the actual MBTI.
Even the official test that you pay to get done, in person, from the MBTI folks, is pretty inaccurate.
So almost no one is typed accurately.
I'm not sure what you mean.
The categories of the MBTI are very useful, but only if you actually are using them, and not looking at some random "fake news" silliness.
I suggest the original book Gifts Differing, if you really want to learn about it.
Introvert Sensing types are the folks on the Autism Spectrum. iNtuiting are those who are very emotionally open and comfortable. It's high estrogen in the limbic system.
Also, it's possible that you're a Perceiving type, yes. An xSxP type is extra hard to assess.
INTP's are the types who are all about researching and designing global systems. Bucky Fuller is the best example.
Also, IN types are notoriously chubby.
IS types are skinnier, though the Perceiving type can throw that off sometimes. (ISFP's are often very chubby)