For example, Budweiser is King of Beers, a Lion is King of the Jungle, Tarzan is King of the Apes.
What other kings of non-kingdoms do we have?
Desmond Dekker - King of Ska
There is a king of wishful thinking.
Also, you have Queens, hills, and worlds.
The late Paul Goldenberg used to be the King of Big Screen TV. I’m not aware if anyone has taken over his throne.
King of the Blues
King of Cocaine
King of Cool
King of the Hill
King of Pop
King of Prussia, PA
King of Pizza
King of Queens
King of Swing
King of the Wild Frontier
King of the road. King of Rock and Roll.
King of Bedside Manner
Or Bedside Manor, as the Barenaked Ladies put it
You forgot about the King of Pain.
Stranger
King of the Zombies (1941)
King of the Rocket Men (1949)
King Dinosaur (1955)
King of Kings (1927, 1961)
Godzilla, King of the Monsters (1956, 2019)
King of Turnovers - Player With Most Turnovers In NBA History | StatMuse
Alan King was the king of comedy. It’s easier when it’s your last name.
In the same vein …
I’ve certainly heard Stephen King referred to as the King of horror writing.
The Duke of Earl isn’t a king. But given decent luck on the battlefield he might become one.
Davy Crockett was King Of The Wild Frontier.
Some delivery driver was the King of Queens.
Is Cecil king of the Straight Dope?
Does Sultan count?
Because Babe Ruth was the Sultan of Swat.
Wait, I believe he was also the King of Crash, so let’s go with that.
Well, some folks say cash is King. Which is almost what the OP wants.