The musical aspect is a big part. Since Glee is about music, a good Blaine Glee fanfic should have him singing, performing, and how music affects his emotions. For example, a fanfic might show how a particular song helps Blaine overcome a personal struggle.
Character development is key. You want to see how Blaine grows and changes. Also, the relationship dynamics within the Glee club are important, like his friendships and rivalries.
One popular Glee Blaine sick fanfiction is 'Under the Weather'. It beautifully portrays Blaine being sick and how the other characters, especially Kurt, take care of him. The story focuses on the tender moments between them during his illness.
One common theme is their journey of self - discovery. Since they are in a same - sex relationship in the fanfics, they often explore their own identities and how they fit into the world around them. For example, coming out to friends and family.
Love is a major theme. Their relationship over the nine years is often explored in terms of how their love deepens and changes. Another theme is growth. We see them grow as individuals and as a couple, like how Kurt becomes more confident in his career and Blaine matures in his own ways.
Tumblr sometimes has posts that link to Blaine Glee gay fanfics. You can search for relevant tags like #BlaineGleeFanfic or #GleeGayFic on Tumblr. However, the content might be a bit more scattered compared to the other two platforms, but it's still worth checking out.
Fanfiction.net is another place to look. There are numerous Glee fanfics there. However, the search might be a bit trickier compared to AO3. But if you dig around a bit and look through different categories related to Glee and Blaine, you might come across some good 'bottom Blaine Glee fanfic'.
Another one is 'A New Beginning'. It starts off with Blaine at a crossroads in his life. The story then unfolds, exploring his relationships in a new light. It has a lot of heart - warming scenes and some interesting plot twists that keep you hooked.
One great Blaine Glee fanfic is 'The Journey of Blaine Anderson'. It focuses on Blaine's growth and his relationships within the Glee club. It has really well - written emotional scenes.
Another option is Tumblr. There are many Glee fanfic blogs on Tumblr. You can search for tags like #Glee #Blaine #sickfanfiction. Some bloggers also post links to their own fanfictions or recommend ones they've read. However, the search on Tumblr can be a bit more hit - or - miss compared to the other two platforms.
If there is such fanfiction, it could be very disturbing for the fans of the show. Blaine was a popular character, and seeing him in an abused context goes against the positive image he had in the series. It might also make some fans uncomfortable with the fanfiction community as a whole, as it's not something that aligns with the general feel of the 'glee' show.
Possibly, it's a story that explores their friendship evolving into something more. Or it could focus on a specific event that changes their relationship in a profound way.