It's fairly common. Fans often look for more content related to their favorite shows. Since 'Attack on Titan' has a large and passionate fan base, there are a lot of fanfics available. 'Aot' fans might watch (read) these fanfics to explore different scenarios that the official story didn't cover. For example, they might want to see how a certain character would react in a different situation or what would happen if a major plot event had a different outcome.
There were some differences between clans and clans. A clan was made up of a number of families or clans. It was generally defined as a situation where people with the same surname, although they shared the same ancestor, but were estranged from each other to the fifth service. The clan was centered around the paternal single-line kinship group and extended upward and downward according to the principle of inheritance between father and son. Clans usually couldn't live together, but had their own independent families or clans, so the possibility of clans sharing wealth was very small. A family was a social group formed on the basis of blood relations, and there were usually several generations. Families were based on bloodlines, and people with blood relations formed a social group. According to the information provided, a clan was an extended form of a family. It was a kinship group that existed on the basis of family relations. Therefore, the difference between clans and clans was that clans placed more emphasis on clan ties and blood ties, while clans placed more emphasis on blood ties and in-laws.
There could be various fanfictions. Maybe some that focus on alternative endings, like ones where certain characters survive who didn't in the original. For example, a fanfiction where Erwin survives and leads the Scouts in a different way.
It could mean that a person who is a fan of 'Attack on Titan' (AOT) is reading or watching fan - created fictional works related to AOT. Maybe they are interested in seeing different interpretations or storylines that fans have come up with.
One way is to check on popular fanfiction websites. Look for ones with high ratings and a lot of reviews. For example, Archive of Our Own (AO3) has a large collection of AOT fanfictions. You can search for the most popular ones there.
Definitely not. AOT is a work of fiction that combines elements of fantasy, action, and drama. It's set in a made-up world with its own unique plot and characters.
The AOT manga has finished. It wrapped up all the major plotlines and provided a conclusion to the story that fans have been following for a long time.