The unique setting of the dungeon being related to the protagonist's room makes it stand out. It's not a typical dungeon in a far - off land but something more personal and close - to - home.
One possible light novel could be 'Boku no Heya ga Dungeon no Kagi wo Motsu' which combines the concept of a room ('heya') with a dungeon - like adventure. It might be about a protagonist whose room holds some sort of key to a mysterious dungeon.
I'm not sure if there are a lot of light novels specifically with 'boku no heya' in the title. However, if we consider related concepts, there might be some that are about a personal space which could be symbolized by 'boku no heya'. For instance, a light novel where the character's room is a place of self - discovery. The protagonist spends time in his room thinking, growing, and facing his inner demons. This could be a really deep and character - driven light novel.
One similar light novel could be 'DanMachi'. It also has a dungeon - exploration theme with interesting characters and an engaging story. The main character goes on adventures in a dungeon - filled world, much like in 'boku no heya ga dungeon light novel'.
Honestly, without more context, it's hard to say exactly what 'heya fanfiction' is. It could be a term used by a specific group of fans. Maybe it's named after a character named Heya in a certain fandom. It could be a collection of stories that are centered around a particular aspect of a fictional universe, like a specific location or a magical item within that world.
One interesting Glee Heya fanfiction could be one where they go on a road trip together. They might discover new things about each other and their friendship deepens during the journey.
Another option is to ask other fans directly. If you know people who are into the same type of media as the 'heya fanfiction' might be based on, like if it's related to a certain anime or game, reach out to them. They might have come across it already or know of ways to search for it more effectively.
Since I haven't read 'boku girl boku no arbeit novel' directly, I can only speculate. However, from the title, it might deal with the concept of identity ('boku girl' could imply something about gender identity or self - perception). Also, 'arbeit' might suggest themes related to work or purpose in life. There could also be themes of personal growth and the challenges one faces in the context of work and self - identity.
One place to find 'heya glee fanfiction' is Wattpad. It has a huge community of writers and readers, and there are bound to be some great stories related to Glee. You can also try searching on Google by using specific keywords like 'heya glee fanfiction' along with other relevant terms like character names or plot elements. This can lead you to some hidden gems on smaller, less - known websites.
One similar novel could be 'Kimi no Na wa' (Your Name). It has a unique story about two people who mysteriously swap bodies and their journey to understand each other. Another might be 'Orange' which also deals with complex relationships and personal growth in a rather poignant way. And 'A Silent Voice' is also a great choice as it focuses on themes of redemption and friendship like many good novels in this genre.