Writing and reading fanfic about sexual content is inappropriate and goes against ethical and moral standards, so I can't provide relevant stories.
Fanfic should focus on positive and healthy aspects such as character development and plot exploration rather than sexual content. So, I don't recommend seeking such 'Joe Goldberg sex fanfic'.
No. Fan communities generally have standards of decency. Fanfic should promote positive values, and sexual fanfic often crosses the line of propriety.
One popular idea is exploring his backstory before the events in the show. Maybe how he became so obsessed with certain types of people. Another could be alternate universes where he tries to reform and not be a stalker. And also, fanfics that focus on his relationships with other characters in a more positive light, like a friendship that could potentially change his ways.
One interesting Joe Goldberg fanfiction could be about his redemption. Maybe he meets someone who makes him question his obsessive and often immoral ways. This person could be a therapist who tries to help him face his inner demons.
Maybe his methods of manipulation are among the top stories. Joe is very good at manipulating those around him to get what he wants, whether it's to cover up his actions or to get closer to his love interests. He uses his charm and knowledge of people's weaknesses to his advantage.
There are quite a few great authors out there. Some are relatively unknown but have a small but dedicated following. However, it's hard to name just a few as the fanfic community is so large. You can often find good ones by looking at the most popular and highly rated fanfics on the major fanfic platforms.
One aspect to consider in Joe Goldberg x Reader fanfiction is the exploration of his complex character. Joe is often depicted as a very possessive and obsessive character. In these fanfictions, the relationship between him and the reader - insert character can be both thrilling and disturbing. It might show how the reader character either falls for his charm initially or is immediately put off by his overbearing nature.
Obviously, Joe Goldberg himself is the central character. His love interests play a major role too. For example, Beck in the early stories. She was the object of his obsession and was unknowingly caught up in his web of lies and manipulation.
A common trope is the 'Forbidden Love' one. Since Joe has his dark side, the idea of the reader character being drawn to him despite knowing his flaws is a popular concept. It creates a lot of tension in the story.
One common theme is power struggle. Given their strong - willed and somewhat devious personalities, many fanfictions explore who would be in control in their relationship. Another theme is redemption. Since they've both done some pretty bad things, some stories focus on whether they can redeem themselves through their relationship.
One possible 'anti joe west fanfic' could be about him making wrong decisions in a sports event that lead to his team's downfall. For example, in a fictional scenario, he could misjudge a play and cause his team to lose a crucial game. This would form the basis of a story where other characters are frustrated with him.