The selection of medicinal wild jujube saplings needs to consider many factors, including strong adaptability, high yield, good quality, etc. The following are some widely considered to be better medicinal wild jujube sapling varieties:

* Big round wild jujube: widely distributed, extremely high yield, round fruit, short fruit stalk, thick skin and thin flesh, sour taste.

* Round bell jujube: It is also a widely distributed variety with high yield. The fruit is round and slightly flat, with short stem, thin skin and thick flesh, and sour taste.

* Xiaolingdang Ziziphus: strong adaptability, high yield, small and round fruit, thin skin and thick flesh, sour taste.

In addition, there are many other varieties of jujube saplings that are also widely used for medicinal cultivation, such as Zanhuang jujube, winter jujube, etc. When selecting specific varieties, comprehensive considerations can be made based on the climate and soil conditions of the planting area and market demand.

Please note that the above information is for reference only, and specific choices should be made based on actual conditions and expert advice.