Can you suggest any authors who are along the lines of subtle magical realism, like Haruki Murakami or David Mitchell?

Well, you're surely aware of the Latin American authors, who are the most important representatives of this genre. Marquez, Borges and Allende are the major exponents. A Mexican writer of interest is Laura Esquivel.

Italo Calvino and Gunter Grass are important among Europeans.

Then, you should also look at Salman Rushdie and Alice Hoffman.

Angelica Gorodischer's "Kalpa Imperial: The Greatest Empire that Never Was," "Trafalgar," and other novels;

Ursula Leguin's "The Lathe of Heaven," "The Left Hand of Darkness," and other novels;

Kurt Vonnegut's "Slaughterhouse-Five," "Cat's Cradle," and other novels;

Stanislaw Lem's "Solaris" and other novels;

Mark Twain's "A Connecticut Yankee in King Arthur's Court;"

C. S. Lewis' "The Great Divorce," and the "Chronicles of Narnia" series;

Singh's "The Woman Who Thought She Was a Planet;"

Bhagat's "Half Girlfriend" and other novels;

Verne's "Magellania" and other novels;

Capek's "R.U.R." and "The War with the Newts;"

Dostoevsky's "Notes from Underground;"

Ouspensky's "The Strange Life of Ivan Osokin;"

Liu's "The Three-Body Problem" and two following.

the "Michael Vey" series;

"Tree Shepherd's Daughter" trilogy;

Calvino's "Cosmicomics;"

Zivkovic's "Hidden Camera;"

Prophet's "The Soulless One;"

Batchelor's "The Birth of the People's Republic of Antarctica;"

Borges' "Labyrinths;"

Chan's "The Fat Years;"

Mitsuse's "Ten Billion Days and One Hundred Billion Nights;"

Carroll's "Adventures of Alice in Wonderland;"

Ende's "The Neverending Story;"

L'Engle's "A Wrinkle in Time" series;

O'Brien's "Mrs. Frisbie and the Rats of NIMH;"

Abbott's "Flatland;"

Cooper's "Hume's Fork;"

Gaarden's "Sophie's World."