To find a reliable swimming class or coach, you can consider the following points: 1. Find a regular swimming pool or fitness club: These places usually have professional swimming coaches and facilities, which can provide professional swimming training for safety. 2. Understand the qualifications and experience of the coaches: Choosing qualified and experienced swimming coaches can ensure the quality and safety of teaching. 3. Refer to other people's comments: You can learn about the coach's teaching quality and attitude from friends, family or other students around you, and you can also check the coach's comments and feedback on social media platforms. 4. Observe the teaching environment: go to the swimming class or the coach's teaching site to observe the teaching environment and teaching quality to see if it meets your own requirements and expectations. 5. Consider the price and schedule: choose swimming classes and coaches that suit your economic ability and schedule, and don't just look at the price and ignore the quality and safety of teaching. In a word, choosing a reliable swimming class and swimming coach needs to consider many factors, including teaching quality, safety, price, time arrangement and so on.