In Chengdu, many restaurants serve Mapo tofu, but which one is best depends on personal taste and preference. The following are some popular Mapo tofu shops in Chengdu:

1. Chen Mapo Tofu: Mapo Tofu in this restaurant is very famous and is the first choice of many locals and tourists. Its Mapo tofu is rich in flavor, moderately spicy and tender in taste.

2. Impression of Chengdu: This is an old Sichuan restaurant, which provides authentic Sichuan cuisine, including Mapo tofu. Their mapo tofu tastes tender and spicy.

3. Taolin: This is a relatively high-end Sichuan restaurant, offering exquisite Sichuan cuisine, including Mapo tofu. Their Mapo tofu is tender and smooth, full of flavor, and delicious with fresh vegetables.

4. Eat in Chengdu: This is a popular Sichuan restaurant that serves authentic Chengdu cuisine, including Mapo tofu. Their Mapo tofu is rich in flavor, fresh and tender in taste, and very delicious with unique seasonings.

To sum up, many restaurants in Chengdu offer delicious Mapo tofu. You can choose a restaurant that suits you according to your own tastes and preferences.