Well, Edmond Dantes can be seen as a Christ figure because, like Christ, he undergoes intense persecution and hardship. But through it all, he maintains a sense of morality and eventually emerges to bring about a kind of salvation or restoration for himself and others.
Yes, there are some. You can start by looking on fanfiction websites like Archive of Our Own. There might be various stories exploring the relationship between Mercedes and Edmond Lemon, with different plotlines and interpretations.
Edmond Hamilton has works like 'City at World's End'. It presents an interesting post - apocalyptic or rather a world - changed - beyond - recognition scenario. Another one is 'The Weapon Shops of Isher' which has unique concepts about a society and its power structures.
Friendship and mentorship are also common themes. The relationship between Dantes and Abbe Faria was one of friendship and mentorship. Fan fictions expand on this, showing how Dantes honors the Abbe's memory and how that relationship shapes his future actions and decisions. It's often a heartwarming aspect in these fictional works.
He describes it as a powerful and majestic force. The river is often depicted as having a life of its own, with its currents and eddies. It's also shown as a source of livelihood for many people who live along it.