I’m not sure if fun is the exact word to use for Dickens’s books. They’re wonderful, but there is a lot of bad stuff happening to good people in all of his books, but they usually have a fairly pleasant ending, although not necessarily the ending the protaganists in the stories were expecting.
That being said, if you love dialogue and being able to see and smell and hear what is going on during that period of Victorian England, then Dickens is the man for you. I can’t get enough of his books. I have not yet read them all, but I’m slowly, but surely making my way through the list.
A Christmas Carol is probably my favorite. Not only is it a wonderful story, in and of itself, but because it is set around Christmas (my favorite holiday) it makes it even better.
Oliver Twist is wonderful too, as are both Great Expectations and David Copperfield.
Dickens is a master of details and characters, you will be transported to Victorian England when you read any of his stories. You’ll probably appreciate his ironic manner of naming some of his characters. One of the best is Uriah Heep. It just sounds so deliciously unctuous.