What is the best word for boys?

The better ones are: Chuxing, Xinghua, Kangxing, Kexing and Zhenxing.

The word "Chu" means clear, neat and lush.

The word birch means the name of wood. Birch is a general term.

The word "Kang" mainly means peace, happiness and health, and it also means praise and broadness.

Kezi means science, scientific research, success and discipline.

The word "town" means protection and stability.