The works of Fyodor Mikhailovich (of course, Dostoevsky!).

Gogol's works are much more painful and agonizing than Dostoevsky's. He doesn't have a single work without some kind of dark episode.

The Inspector General? :)
No, that's just my opinion. Maybe I'm wrong. Mysticism is a pretext, I agree, but why does Gogol use something fictional, unreal as a pretext (even if it's drawn from folk legends), while in the case of Fyodor Mikhailovich, it's really easy to believe in the possibility of such a situation? Indeed, why look for emotional experiences in legends when there are so many more in real life: just take a pen and write them down?
And in Tolstoy, in my opinion, too much attention is paid to form. And the French language for half the book confirms this. Too much attention is paid to the insignificant. But that's just my opinion.