I'm afraid I don't have any information regarding Roderick Walker's full story. There are so many people with this name out there. He could be a regular Joe with an interesting family history, or perhaps a creative type with a unique artistic journey that no one outside his immediate circle knows about.
A frequent theme is adventure. Roderick is usually sent on all sorts of exciting adventures in the fanfic world. There's also the theme of family. Some fanfics explore his family background and how it affects his present life and decisions. Moreover, themes of loyalty and betrayal can also be found in Roderick fanfic. His loyalty to his friends or the possibility of being betrayed by someone close are often story elements.
One popular Roderick fanfiction could be those that explore his relationships within his family in more depth. For example, stories might focus on his bond with his siblings and how it changes over time.
You can try fanfiction.net. It has a large collection of fan - made stories, including many about Roderick from Glee. Just search for 'Roderick Glee' in the search bar and you'll get a list of relevant fanfictions.
One highlight is her successful modeling career which likely led to her entry into acting. Another is her appearances in different entertainment projects.
One of the popular Roderick fanfics is 'Roderick's Quest for Redemption'. This story is quite engaging as it shows Roderick trying to make up for his past mistakes. The author does a great job of creating a believable world for Roderick to exist in. Additionally, 'Roderick in a Parallel Universe' offers a fresh take on the character by placing him in a completely different setting.
Greg could be a great character to pair with Roderick. Their brotherly relationship has so much potential for interesting stories. They could go on adventures together or get into all kinds of trouble at home or in the neighborhood.
There might be a fanfiction where Roderick tries to teach Greg some cool tricks to be more popular in school. He could use his own experiences, both good and bad, to help Greg out. For example, he might show Greg how to dress in a more 'punk' style to stand out.