How to name a child of Kai generation with the surname Shen?

Possible name: Shen Kaile (Kai, means to stretch, develop, open. Le, means to be happy and interested.)

Shen Kaiyuan (Open source, means to be in Increase financial and economic income. )

Shen Kailang (cheerful, describing thoughts, mind, character, etc., optimistic and cheerful.)

Shen Kailai (Kailai, taken from "Carrying on the Past and Opening the Future" , meaning to open the way for the future)

For reference.