In our world, many monarchs, such few as remain, have little in the way of actual political power; for the most part, their functions are largely symbolic and ritualistic, at least in common perception. Your challenge, should you choose to accept it, is to create a world with more countries operating as monarchies, and with monarchs generally having more overt and recognized authority. Absolute monarchies are not required; constitutional and parliamentary arrangements are fine. Elective monarchies work too.