Fujian is a province rich in seafood resources, and many cities have cheap seafood supplies. Here are some Fujian cities and seafood that may be worth recommending:

1. Fuzhou: Located in the eastern part of Fujian Province, Fuzhou is a city with a rich food culture. Fuzhou is rich in seafood resources, especially in coastal areas such as Pingtan, Changle, Lianjiang and other places. Famous seafood include Fuzhou oysters, Fuzhou fish balls, Fuzhou stewed swim bladder, etc.

2. Xiamen: Xiamen is located in the southern part of Fujian Province and is a famous tourist city and food city. Xiamen is also very rich in seafood resources, especially in coastal areas such as Gulangyu, Zengcuo and other places. Famous seafood include Xiamen oysters, Xiamen clams, Xiamen yellow croaker, etc.

3. Quanzhou: Quanzhou City is located in the southeast of Fujian Province. It is a city with rich history, culture and food culture. Quanzhou is also rich in seafood resources, especially in coastal areas such as Jinjiang and Shishi. Famous seafood include Quanzhou oysters, Quanzhou clams, Quanzhou sea bass, etc.

4. Ningde: Ningde City is located in the northeast of Fujian Province and is a famous tourist city and food city. Ningde is also very rich in seafood resources, especially in coastal areas such as Fuding and Xiapu. Famous seafood include Ningde yellow croaker, Ningde hairtail, Ningde oysters, etc.

To sum up, many cities in Fujian Province have cheap seafood supplies, and you can choose according to your personal taste and spending power.