In fact, there are many factors to consider when choosing a suitable English name, such as personality, occupation, preferences and so on. Here are some English names that may be suitable:

1. Vivian: This English name is very common, meaning lively and happy, similar to Chen Huanhuan's name.

2. Haley: This English name is also very common, which means optimistic and positive, but it is also very temperamental.

Isabella: This name means beautiful and elegant, suitable for people with gentle and quiet personality.

4. Olivia: This name means peace and harmony and is suitable for cheerful and optimistic people.

5. Serena: This name means quiet and peaceful, suitable for people with quiet and gentle personality.

Of course, these are just some suggestions, and the specific English name needs to be decided according to Chen Huanhuan's own preferences and personality.