In the netherlands the monarch plays a role in government most similar to that of the

Great Britain.

Explanation:

This is the case because in both Netherlands and Britain monarchs have more traditional than political role. Both countries are constitutional monarchies, where monarch doesn't have an important role when it comes to the process of decision making, while on the other side they have a traditional role in the society. It is interesting that members of Orange family were in one moment the rulers of both countries.