In the Personality Test Resources section I have found a link to the following test.
I have already posted this poll in the different NF forums and in the NT forums and in the ISTJ forum. And maybe this way we can find out which one(s) is (are) the prevalent type(s) for ISFJs in this classical temperament model. For INFJ and INFP there already are some (first) interesting results.
The (ENFP) author of the test wrote:
This test is amazing! In 12 questions it will know all about you and describe your behavior in astounding accuracy (wow!) It covers different qualities than the ENFP/ISTJ tests, so have high expectations!
...one ENFJ pointed out that there is a newer theory about these temperaments. However, it might still be possible to draw some conclusions out of this.