Online services: such as website design, network marketing, translation, proofreading, etc.
Online transactions: such as second-hand transactions, commodity sales, etc.
Provide home services: for example, cleaning, repair, etc.
Do your own business: for example, making by hand, selling snacks, selling plants, etc.
Provide training services: such as music training, dance training, language training, etc.
I hope these suggestions are helpful to you. Please note that before choosing any business, please fully understand the relevant regulations and legal responsibilities.