Yes, there might be some. Fanfiction often explores unique relationships. However, it's a rather strange pairing considering Chucky is a horror character. But in the world of fanfiction, all kinds of unexpected pairings can be created.
Fanfiction.net could also be a place to look. However, keep in mind that this is a rather unusual concept so it might not be easy to find. You may need to use the search function carefully, typing in relevant keywords like 'chucky', 'andy' and 'love' to see if any relevant stories pop up.
A plot idea could be that Chucky gets cursed in a way that he is forced to protect Andy. So, he has to follow Andy around and keep him safe from other threats in the horror - filled world they inhabit. This would lead to a lot of comical and also tense situations as Chucky is not used to being a protector. And they could gradually develop an understanding of each other's perspectives during this time.
Rather than enemies, they could be shown as reluctant friends. They might start to communicate more and find that they have common interests. For example, they could both be interested in stopping a new evil force that has emerged in their town. This would force them to work together and over time, their relationship would change from one of hatred to one of mutual respect.
There are several real - life elements that inspired 'Chucky'. Dolls have always held a certain fascination and fear for people. The fact that they can be made to look very lifelike, yet they are not alive, can be quite unnerving. This is part of the inspiration. Also, the idea of cursed or haunted objects is prevalent in many cultures. Items that were involved in tragedies or had a dark past were thought to be cursed. 'Chucky' capitalizes on these concepts. It makes the doll not just a passive object but an active agent of evil. The movie also adds a modern twist with the idea of a serial killer's soul inhabiting the doll, which is a fictional take on the real - life ideas of cursed and spooky objects.
As I said before, without more context, it's hard to determine who exactly Andy King is in the story. He could be just an ordinary person with an interesting life experience.
Yes, 'Chucky' is somewhat based on a true story. The idea of a malevolent doll has roots in some cultural beliefs and superstitions about cursed or possessed objects. There have been accounts in history of people believing that dolls or inanimate objects had some sort of evil presence. However, the movie's Chucky is a highly fictionalized and dramatized version with his own backstory, personality, and a whole horror - filled narrative built around him.