Books Seriously. Books are the ultimate long-form content; their authors typically spend years researching and writing them, and you can sample many reviews before committing to read one.
How do you avoid the problem of low signal to noise ratio? Some books in the popular business press can be reduced to several pages, with the core idea, rationale, and examples. Yet they all end up being longer than needed with tons of exposition.
Its definitely not a 100% method but i feel like that the chance that the book is not well written is much lower when at least one person found it readable/enjoyable.
I have a Trello Site for that where i create a card for every book and write down or copy+paste the recomendation.
I also typically download the book from libgen first, take a quick look at it and then buy the book.