Stories that blend genres. Could be Warhammer at its worst, someone would still crack a joke.
Character wise:
Adam Jensen.
I love these type of characters.
They oscillate between hero and villain but prefer neither, instead following their own moral code. Characters that can change their minds when presented with new situations or information.
Most I love that you can see how powerful they can be but they never use it to threaten. And when it does show they never boast or rub it in someone's face. It just happens. It a tool. And that's why they're pro. And they can take a joke!
Compare that to your average overpowered isekai protagonist.
You'll see a lot of this in my own characters.
Execution wise:
A format that fits. Be it a verbal tense, perspective or an art style. It has to fit.