I would like to ask what kinds of divination systems can be divided into?

It can also be divided into four categories: "looking, smelling, asking and cutting".

Look at it with the naked eye, such as face and palm reading.

Smell: conjecture, such as psychic, crystal ball, etc.

Q: Ask fortune tellers, such as constellations and astrology.

With the help of tools, such as signature, tarot cards, etc.

In fact, these four methods are rarely used alone, and they are all used in combination.