If you are interested in great classical works of human behavior and psychology, the novels of Leo Tolstoy, and Fyodor Dostoyevsky are hard to beat. You need to be a patient reader. These books will repay your efforts. As you get into them, you will feel yourself pulled along.
And, of course, there is always Charles Dickens, who is unbeatable at what he does. His novels will be around as long as mankind is.
My two cents worth.