This question depended on personal interests and skills as well as market demand. Both delivery and online taxi hailing had their advantages and disadvantages. The specific choice should depend on the individual's specific situation. Delivery was a relatively simple and flexible freelance job that could provide services at any time and anywhere, but it required basic delivery skills and familiarity with local traffic rules. The advantage of delivering food was that the income was relatively high and it usually didn't require long exposure to dangerous environments like online car hailing. Running an online taxi ride required higher skills and more experience. It required mastering driving skills and understanding local traffic rules. It also required a certain marketing strategy and customer service skills. The advantage of online hailing was that it could provide a higher level of service, higher income, and usually required more flexible working hours. Therefore, the choice of delivery or online car booking should be based on personal interests, skills, experience, and market demand. If you are interested in both external sales and online car hailing, and have enough skills and experience, you can consider doing both at the same time to earn income in either field.