It depends on where you start, north or south. If you start from the north, Datong Xuankong Temple, Yungang Grottoes - Hukou Waterfall in Linfen - Pingyao - Qiao Family Courtyard in Qi County - Jinci Temple in Taiyuan and other scenic spots
It is recommended to visit the ancient city of Pingyao for at least 2 days. It is best to go to the Xuankong Temple in Datong and also go to the Yungang Grottoes. It is worth visiting Hukou Waterfall for one day.