Guangzhou:
1. Dim sum: Guangzhou is a famous dim sum capital, including Shao Shao, Barbecued pork buns, shrimp dumplings and chicken feet. You can try some dim sum shops near Lai Chi Wan and Guang Zhouta.
2. Steamed fish: Guangzhou people like steamed fish because it can keep the fish delicious. You can try restaurants like Li Yue Studio and Yoshino Japanese Cuisine.
3. Hot pot: The hot pot in Guangzhou is mainly light and delicious. You can try some famous hot pot restaurants such as Haidilao and Green Pepper.
4. Chaoshan beef hot pot: Chaoshan beef hot pot is one of the characteristics of Guangzhou. You can try restaurants such as Authentic Beef Club and Hager Beef Hotpot.
Shantou:
1. Chaoshan beef hotpot: Chaoshan beef hotpot is one of Shantou's special cuisines. You can try Haige Beef Hotpot and Authentic Beef Club.
2. chaoshan beef meatball: chaoshan beef meatball is a traditional food in Shantou, with delicious taste and unique flavor. You can go to restaurants such as "chaoshan beef meatball Family" and "Authentic Beef Ball" to taste.
3. Shantou Beef Powder: Shantou Beef Powder is one of the specialties of Shantou, and you can go to restaurants such as "Shantou Beef Powder Family" and "Authentic Shantou Beef Powder" to taste it.
4. Roasted Goose in Chaoshan: Roasted Goose in Chaoshan is one of the traditional delicacies in Shantou, which can be tasted in restaurants such as "Roasted Goose Emperor" and "Chaoshan Roasted Goose Family".
To sum up, there are many delicious foods in Guangzhou and Shantou. You can taste different foods according to your own tastes and preferences.