Return to monarchy .

In quite a few Balkan states, the old royal families have been invited back and, in some cases, have figurehead-like roles IOTL*, so it wouldn't be far-fetched to have one of them restored. Probably the most promising PoD would be if Simeon of Bulgaria had remained popular as Prime Minister. Yes, a deposed monarch became an elected PM a few decades later and the world somehow didn't explode.
No, the most promising POD would be Simeon becoming President, a largely ceremonial position where he could stay above politics and become an unifying figure. This is in fact what he wanted to happen, but the constitutional court ruled him ineligible in a controversial case (three of the justices voting against him were appointed by the incumbent president and it was a 7-5 decision). As Prime minister, he inevitably became involved in partisan politics and almost inevitably lost his popularity. The fact that he acquired a huge amount of property to which he had no right certainly didn't help him, but avoiding this would be difficult as this was likely his main reason for coming to Bulgaria.
 
For the most part, the most plausible states that could return to monarchy are the Balkan States, and even then some opted to remain a republic. The reason why Monarchy isn't popular is simply because, in the eyes of many in the modern world, they tend to see monarchy as a relic of the middle ages and people see Republics as a representation of what it means to be in the modern world.

A restoration of monarchy tends to be something that is very difficult, almost bordering on nigh impossibility, only being kept from being completely impossible because Spain and Cambodia were the only instances where a legitimate Monarchy has been restored from a republic.

Frankly, it's much, much easier to work to keep the monarchy going than to restore a monarchy from another government type.
 
security.

All you need to do, is make the monarchy look like the safest option, which is possible if the democratic system seems to be tainted.

What makes the spanish case an exception rather than a rule, is that the restoration of the monarchy only was possible because it was Franco's(with the support of other influent circles, like the Opus Dei) will, not the nation's will (in fact, polls of the time show a clear preference for a republic even in the 60's). Of course, the historical cycle that starts with the second republic-civil war-dictatorshiop-restoration is also a very particular one Juan Carlos was known as Juan Carlos the Brief, and he only gained respect after the 1981 coup attempt and the subsequent propaganda campaign, favourable media etc.

So, of course if you have strong political power, a part of the elite wanting a monarchy back, and historical crisis and a strong medatic machine, well, you can do it everywhere. But as said, as the time passes without a king, the monarchist feelings tend to fade.Also, In some countries like France, reoublicanism has become almost an identitary element of the national ethos, its dificult to reverse that.
 
Top