I suggest Taobao, as it has a wider range of business.

Those who are doing well on Taobao will not be too bad at Tik Tok. Tik Tok is a short video plus live broadcast operation, which is also included in Taobao operations. Taobao started early and other platforms are also applicable, because Taobao can be said to be the ancestor of e-commerce. Pinduoduo and JD.com are basically imitating Taobao.

Those who are good at Taobao should not be bad at other e-commerce platforms. I personally think that the current Tik Tok operation is more difficult than Taobao, and requires you to have strong content creation capabilities. Generally, those who are good at it are graduates of news media dramas, such as copywriting, scripts, short video shooting, conception, editing, editing, drainage, customer operations, live broadcast operations, data analysis, and various short video editing plug-ins.