A new Harry Potter tale if he was raised to think and question by intelligent people instead of idiots. Really liked the story and laughed out loud at some parts (minor spoilers here of amusing things: Harry isn't friends with Ron because Ron is dumb, Snape hits Harry in the head with a book and Harry reports him, etc). Included in this podcast is also the Metropolitan Man - a Superman story from a more rational Lex Luthor standpoint, and Crystal Society - an AI robot story. Really good listens.
My favorite Harry Potter fanfiction in podcast form! It's not perfect (I take issue with some pronunciation choices), but it's way better than I expected from such a project! If you're a fan of Harry Potter, but you're also a fan of rationalism, then this is definitely the audio drama for you.
I can't vouch for the content that comes after The Methods of Rationality, as I've not yet listened to it.
I would add a content warning: this not only has the same themes to be expected in any Harry Potter tale (including death, suicide, self-harm, bigotry, and abuse/negligence), it takes a much more direct approach to them. It might be considered less child-friendly than its source material for that reason. If you're looking to listen to it as a family or recommend it to kids, please check it first to see if you're alright with it.