Who are the magicians in The Romance of the Three Kingdoms?

Three immortals at the end of the Han Dynasty (Yu Ji, Zuo Ci, Nanhua Laoxian) (these are all old immortals)

Dade teacher Zhang Jiao and his brothers Zhang Bao and Sean (these are disciples of the old immortals in the south of China).

Zhuge Liang, a wise demon (who knows Taoism)

The soothsayer is in charge of chromium (so is this divination)