Which DC characters have a chance of beating superman

I am realatively new to comics but eager to learn and I want to know which heroes have a chance if they fought him

Shazam, Black Adam, Icon, Orion, Lobo, Martian Manhunter, Flash, Wonder Woman, Mon-El, Captain Atom, Entrigan, Apollo, Hal Jordan..............literally the list goes on and on, I'll die of old age by the time I'm finished.

Flash could beat him???

Speed Force stuff LOL. One option is to trap Sups inside LOL. I don't know much about Flash, but just look at some of the battle forums involving him, he has numerous ways to beat Superman. Including the Infinite Mass Punch, which apparently hits with the force of a Supernova (so I've been told).

Depends on the writer.

Dr. Fate would destroy that dude.

Batman very recently beat him

A lot of guys can beat Superman.

Martian Manhunter, Captain Atom, Lobo, Etrigan, Dr.Fate, John Constantine, Superboy, Supergirl, Black Atom, Shazam/Captain Marvel, Icon, Atrocitus, Sinestro, Despero. To name a few.

Lex Luthor

Depends on location, morals, and options of winning (BFR, KO, Death) but if the location is krypton almost any superhero could beat him. But anyway, batman could probably find a way with prep time, flash would be a good match, Wonder Woman I would love to see, and green lantern would be pretty cool too, I could go on, but I have homework :)