1. Teaching quality: This is the most important point. You can consult the students who have already participated in the online search to understand the teaching quality of training institutions. See whether their teachers are professional, whether their teaching methods are scientific and whether they have targeted teaching plans.

2. Course content: See if the course content provided by the training institution meets your needs. Some institutions may only offer some basic courses, but what you need may be deeper and more professional knowledge.

3. Learning environment: A good learning environment can improve learning efficiency. You can visit the learning environment of training institutions on the spot to see if there is a good learning atmosphere and whether the facilities are complete.

4. Price: Price is also a factor to be considered. But be careful, don't just look at the price, but also look at the cost performance. Some institutions may charge higher fees, but the service and teaching quality they provide are correspondingly higher.

5. Service: See if the training institution provides one-on-one counseling, answering questions and other services. These services can help you better understand and master knowledge.

6. Word of mouth: Word of mouth is also an important reference factor. You can search online, ask students who have already participated, and understand the reputation of training institutions.

7. Audition course: Many training institutions will provide audition courses. You can attend the audition course first to see if it suits you.

Generally speaking, when choosing a postgraduate training institution, we should comprehensively consider multiple factors and find the most suitable training institution.