You can choose some representative ones. If the baby is born in a rainy day, it can be called Peng Yuxin, which also represents the beautiful vision of hoping for a warm and harmonious family. Your newborn baby is your baby, so it's better to name it yourself.
I can think of some for reference only!
Peng Yujie
a surname
Peng Xin
Peng linying
I hope I can help you and wish the baby grow sturdily!