Hi Sol from the University of Suffolk here
I studied English for my Degree and also studied Creative and Critical Writing as a Masters Degree.
I'd recommend anything by Fyodor Dostoevsky, and Vladamir Nabakov.
Dostoevsky's shortest work is
Notes from the Underground or his most famous (and in my opinion his best) is
Crime and Punishment.Nabakov's books are shorter and arguably more accessible. He wrote in both English and Russian.
Lolita is his most famous, but all of them are brilliant!
Anton Chekov is also definitely worth a look, he has a huge collection of short stories, as well as longer works, his short stories are very good if you are looking for an introduction to Russian Literature.
I hope this helps.
-Sol from the University of Suffolk