I don't know exactly who the main characters are in 'almost home a novel'. However, it's common in such stories to have a protagonist who is on a journey. This protagonist might be someone who has lost their home, either literally or metaphorically. There could also be supporting characters like a wise old guide who helps the main character on their journey, or a family member who the main character is trying to reach or reconnect with at home.
Since I haven't read the novel, I can't say for sure. But typically in a novel about the idea of 'almost home', there could be a traveler, perhaps a young person seeking their roots.
Not having read the book, it's hard to determine the main characters. But it's possible that there's a lead character who is displaced, maybe due to some external circumstances like war or family issues. This character could be accompanied by friends or strangers they meet along the way. There might also be antagonists who are trying to prevent the main character from reaching home, creating conflict and driving the story forward.