There are books dedicated to different words & phrases w/ the same or similar meanings. If you don’t have one of these books, typing <“antonyms of no big deal”> in any search engine, will give you multiple options.
Ever since it went over well that one time, “nothing burger,” gets overused, every single time something ends up pointless, on any forum or social media, used by any & all political viewpoints.
Makes the user sound like their biting into a big, juicy, burger, chewing away like a jackass as the world turns, happy they used a word that “sets them apart” or makes them sound “clever,” & not simply like an imbecile who thinks tacking “burger “ on the end of a word sounds cool.