This is a standard power for many of the heroes of Astro City. Of particular note is Cleopatra II, who has super-strength although her predecessor did not.
The Asterix comic books are about a village of Gauls who fend off the Roman empire with the aid of a magic potion that grants them the power to send Roman legionaries flying with their punches. Asterix's friend Obelix doesn't get a dose of the potion when all the other villagers are lining up for it, since he fell into the cauldron as a baby, an event which increased his strength permanently.
On one occasion only Obelix was given a tiny dose... so that he could punch his way out of a pyramid.
Atomic Robo is significantly stronger than a human, with nearly a century's experience of hunting weirdness and access to super-science weapons that invariably break and force him to slug his way out. He'd still have a hard time taking Jenkins in a fight, though.
Old characters in both The Beano and The Dandy employ this trope, examples including Pansy Potter from The Beano and Desperate Dan from The Dandy.
Most of the cast in The Boys thanks to Compound V have Super-Strength which often leads to lots of Gorn in fights as characters rip each other apart like wet tissue paper.
Calico (2020): The mysterious villain who shows up in Issue #4 is strong enough to lift a car over his head with both hands.
Monica from Monica's Gang is capable of bending iron bars, throwing objects into orbit and effortlessly lifting a piano, and all of this despite being a child. While her feats sometimes are part of Rule of Funny and the degree of her strenght may vary between the comics, a story even confirmed she was the strongest person in the world.
Popeye: Even without his spinach he is still capable of feats of strength even the strongest man can't do. With it? He's as strong as he needs to be.
In Reid Fleming, World's Toughest Milkman, it's never suggested that Reid is more than an unusually strong person, but he routinely performs impossible feats of strength, like lifting cars and milktrucks. Justified by Rule of Funny.
The Savage Dragon and thus, many of his villains, have super strength as well.
Most of the protagonists and a few villains in Sin City have crazy strength and ridiculous endurance. Marv is the main example capable of breaking doors open, crushing skulls, ripping steel bars off walls and overpowering Manute a man even larger than himself. John Hartigan is just as impressive since he was pushing 60 but still capable of punching a man's skull into bloody chunks in Extreme Mêlée Revenge.
All of the enhanced humans in Strikeforce: Morituri have above-normal human strength as a side effect of the process. Marathon had a variation where his strength grew the longer he refrained from using it, while Brava had strength exceeding that of the other Morituri.
The Tick has "the proportional strength of a tick his size who engages in routine exercise".
, rip off Nazi Frankenstein's Monster head
