Ordinary diseases can only be medical expense reimbursement products: Kunlun Health Insurance of Kunlun Health Supplementary Medical Insurance for Urban Residents (Children's Edition) reimburses children's daily medical expenses.
Serious illness: PICC Health and Kunlun Health products are good.
All insurance companies have relatively low premiums. You can go to Mingya Insurance Supermarket to calculate the premium suitable for children and check the insurance liability of related products.
If you have any questions, you can consult customer service and design the scheme. It's not too late to buy more products from several insurance companies.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.