Shanghai, as the economic and cultural center of China, has many vocal training institutions. The following are some cost-effective vocal training institutions worth recommending:

1. The High School Affiliated to Shanghai Conservatory of Music: As a professional music school, the college has excellent teachers and rich teaching resources, providing comprehensive Vocal training courses.

2. Shanghai Normal University Conservatory of Music: The college has a high-level team of teachers, focusing on cultivating students' musical literacy and performance abilities, and providing personalized vocal training courses.

3. Primary School Affiliated to Shanghai Conservatory of Music: This school is a school focusing on music education. It has first-class teaching facilities and a professional team of teachers, and provides systematic vocal training courses.

4. Shanghai Music School: As a music school with a long history, the school has rich teaching experience and excellent teachers, and provides comprehensive vocal training courses.

5. Shanghai Youth Art School: This school is a school focused on cultivating young people’s artistic talents. It has first-class teaching facilities and a professional team of teachers, providing personalized vocal training courses.

The vocal training institutions recommended above all have good reputations and rich teaching experience, and can provide students with high-quality vocal training services. When choosing a training institution that suits you, you can consider your needs, budget, time schedule and other factors for a comprehensive consideration.