TRACON is more of an "experimental" position compared to TWR/GND/DEL. For example, we cannot teach how to "vector" as this is different from student to student. On tower, it is easy to give examples and show how procedure should be done. On TRACON, it is difficult to give these examples.
However, we do have plans in the future to implant something related to VATUSA's Material
explaining the absolute basics/requirements for working TRACON.