Thank you.

 

What do you mean by "AU Grindelwald"?

 

How To Create A Thread With The Least Effort Possible: Textbook Example, Vol. 1

 

Skitterleap.

(Reply contains as much effort as OP)

 

FF.net has 3 stories with the pairing Harry/Grindelwald, but two of them are Fem!Harry, so it's more "Grindelwald in AU!Harry" than what you're looking for. I haven't read it but here is the third: Liberate Me.

You're welcome.

Also, you might want to read the rules, I'm pretty sure somewhere says that searches for slash fics are frowned upon.

 

I'm not entirely sure what your asking for, so I am just going to list fics that contain Grindelwald in a major role. In the future, you should probably be a bit more detailed on what your actually searching for, your opening post didn't really leave much to go on.

Escape to Darkness has a Harry trapped in Nurmengard by Voldemort after his resurrection.The fic mainly deals with Harry's training by Grindelwald and their eventual escape to a Voldemort controlled Wizarding world.

Harry Potter and the Greater Good is an AU where Dumbledore joined Grindelwald, and they succeed in subjugating muggles. The fic suffers from the world being a bit too dystopian, as well as a very spineless Harry.

Hail Odysseus is fic with Grindelwald breaking out of Nurmengard to raise Harry. It's a huge bashfest, with targets ranging from Dumbledore, the entire Weasley family minus Ginny, and Pomona Sprout. It also has a random bestiality scene that comes out of nowhere.

Escape to Darkness and Harry Potter and the Greater Good are both abandoned while Hail Odysseus is complete.