Hi may I know where do I find local supermarket or local tidbits to buy as soviniers in Shanghai?

For souvenirs, you are suggested to go to the Temple of City God (Chenghuangmiao) to find. The closest metro station should be Yuyuan Subway Station of line 10.

For cheap clothes and shoes, you can go to Qipu Road Clothing Wholesale Market, where you can bargain freely. Tiantong Road Subway Station is the nearest.