The 'harry speaks gobbledygook fanfic' could potentially be about a number of things. It could be a form of magical experiment gone wrong in the story, causing Harry to spout gibberish. Or it could be a new form of magic that Harry is trying to master which initially makes him speak in what seems like gobbledygook. Another possibility is that it's a comical side - story where Harry is under the influence of a potion or spell that affects his speech, and the fanfic then follows the chaos and confusion that ensues from his strange way of talking.
I'm not aware of any exact fanfics similar to that one. But you could try looking for fanfics that focus on humorous or unusual takes on the Harry Potter world. Maybe search for fanfics where characters have strange magical mishaps.
In addition to Harry, Ron could play a role. He might be initially skeptical about Harry's foray into Hebrew magic but later comes around. There could also be a wise old Hebrew - speaking rabbi - like figure who serves as a mentor to Harry, guiding him through the complex world of Hebrew spells and their meanings.
One 'harry speaks french' fanfic that might be interesting is 'The French Adventure of Harry'. It has an engaging plot where Harry uses his French language skills to solve mysteries in a magical French setting.
One interesting aspect could be the unique world - building. By having Harry speak Latin, it might create a different atmosphere in the story, perhaps a more mysterious or ancient - feeling Hogwarts. Another aspect could be the character development. Speaking Latin might make Harry seem more studious or in - touch with the magical roots of the wizarding world. Also, it could lead to new magical spells or incantations that are based on Latin, adding a fresh twist to the magic in the fanfic.
Perhaps Harry is transported to a parallel magical world where Hebrew is the main language of magic. He has to quickly learn to speak Hebrew in order to communicate and find his way back to his own world. Along the way, he meets new friends who teach him about the unique aspects of Hebrew magic.
One popular 'Harry Potter speaks to dragons' fanfic is 'The Dragon Whisperer'. In this fic, Harry discovers he has an unexpected ability to communicate with dragons which sets him on a whole new adventure. It's full of exciting encounters and new magical elements.
It differs mainly in the language aspect. While most fanfics focus on the regular English - speaking Harry Potter world, this one has Harry speaking Latin. This gives it a more academic and arcane feel. Other fanfics might center around relationships or new adventures, but this one could potentially explore the deeper, more ancient magic through the use of Latin.
It could be about Ash, the main character from Pokemon, expressing his thoughts, experiences or adventures in a fan - created fictional story. Fanfics often take existing characters and expand on their stories in unique ways.
It could be about various things. Maybe it's about a character's inner thoughts or soul - related experiences within the Twilight universe. It might explore how a character's true self communicates or reacts in different situations in the Twilight world.