Wikimedia Commons has media related to Forms of government.

Pages in this category should be moved to subcategories where applicable. This category may require frequent maintenance to avoid becoming too large. It should directly contain very few, if any, pages and should mainly contain subcategories.

This is a set category. It should only contain pages that are Forms of government or lists of Forms of government, as well as subcategories containing those things (themselves set categories). Topics about Forms of government in general should be placed in relevant topic categories.

Forms of government are sets of constitutional institutions by which states are organized.