What cultivation and pill refining novels have you read and recommend one to me?

He had once read a novel where the protagonist could refine ten million pills at once. The protagonist seemed to be a disciple of a very famous alchemy sect. I forgot the title of the book, please remind me. P.S. I suddenly thought of such a book. It was very interesting. I wanted to reply again, but I forgot the title. Everyone, I only want the book that I have read before. If anyone has read it, they will know which book I am talking about. If you want to recommend it, forget it. Don't waste everyone's time. Thank you.