What you want to ask is where can I sell Rongchang fry? Local fishing companies or fry farms and fishing markets. According to Baidu map query:

1. Local fishing companies or fry farms: Fishing companies or farms in Rongchang District or nearby areas have channels to supply Rongchang fry.

2. Fishery market: There is a fishery market near Rongchang District. You can go to the market to find a stall selling Rongchang fry.