1. Yihongyuan Laoshe Teahouse: Located near Humble Administrator's Garden, it provides authentic Soviet-style dim sum, such as Yangxian tofu flower, Tuantuan Garden and sweet and sour mandarin fish.

2. Chen Maiya: Located in Guanqian Street, it is a Soviet-style dim sum shop with a long history. Recommend to try their Jiao Ayi stinky tofu and boiled eel.

3. Surrounding Mountain: Located on Pingjiang Road, it is famous for Soviet snacks such as kimchi, pot helmet and dried fish belly.

4. Yang Fuji: Located at the intersection of Pingjiang, it provides Su-style snacks, such as basket cakes, snail powder and glutinous rice cakes.

5. Visit Shanxi Pass: Located in Guanqian Street, it provides Suzhou traditional snacks, such as the famous white rabbit and salted duck eggs.

These are just some suggestions. You can also go to the local traditional vegetable market, night market or ask local residents for more advice.