1. You can buy some autographed youth records on Taobao or websites that sell records, but usually the postage or freight of these records are more expensive. It seems that the latest record I bought from f(x) was released in Beijing, with everyone's autographs and posters in it. Freight 55 yuan, total cost *** 155 yuan, extremely expensive.

2. You can attend a youth signing ceremony, such as South Korea. The last concert was in Shanghai last year, but you didn't go. ....

3. If you are afraid of high freight, go to some high-end record stores near you and ask them if they can sell them, or if they can send them by air, but you don't want to go further, but you want to buy them, so this method is good, but it may cost you some money to have them deliver them.

Let me give you a hint. I saw a signed album for sale in Hong Kong last year. This is the album Run, Devil Run. You can go and have a look when you are free.