Lined Leuchtturm1917 hardcover A5 notebooks have been my go to for drafting longform stuff for years at this point.
This is how I use them.
I write the title at the top. Line under it. Then I start writing. Two blank lines between paragraphs. And when I’m done I sign it and move on the the next empty page.
And when I transcribe something I write “(Done)” or “(Nope)” next to the signature. Done means it’s transcribed and Nope means I ditched it.