Well…I mean, graded readers can be helpful. But the main thing about extensive reading - and he’s right, extensive reading is totally an excellent way forward - is that it has to be fun. Now, I prefer Naruto to most graded readers I’ve looked at, so. That’s what I’m reading. I had to work up to it - started with Yotsubato and didn’t understand all of that, either, but you don’t need to understand 100% to enjoy something
I’m not an AJATTer but that’s something he got right - get books, apply eyes, read however. Read closely the bits you like and skim the bits you don’t, whatever, get words in your eyes. I read Yotsuba quickly and a few chapters of Fairy Tail really slowly and bits of No Game No Life and Harry Potter at varying paces, and they all helped me get to where I can read Naruto at a comfortable pace of a chapter a day and look up, like, maybe one word per page. Sometimes I can’t be bothered so I don’t, and only start again if I start losing track of the story.
I don’t know, Maybe this is the best way, but I still think the best way is the one you’ll actually do. Oh, and that we should all read more probably, and maybe also a bit faster.