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Given the following post, respond as if you're commenting on Reddit:
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Best Hard Copies of Books

Hello!

I'm primarily a student of English Literature. Norton Critical Editions of texts in this field are great because in addition to the text, they include hundred pages or so of contemporary critical analysis and other texts (letters, journal entries, other primary documents) providing context. 

Is there an equivalent philosophy publication? For example -  the full text of Nietzsche's Also Sprach with some analytical essays included. 

I'm sorry if this isn't the kind of post that's allowed, I really don't know where else to ask and the googling I've done hasn't been fruitful.
gpt
It's extremely dependent on the specific text - at least for works in translation. If the work is in translation, it is normally necessary to do some research online as to which translations are well received. For Nietzche, is doesn't matter how good the supplemental materials are if the translation is off. Once you know what translation you want, you're normally pretty limited in terms of the editions available.

If the work is not in translation, there's not a huge difference. Philosophy texts tend to be presented on their own, sometimes with an introductory essay. So long as the copy of the text comes from a reputable publisher - a University Press, Routledge, Hackett, etc. - any included introduction should be serviceable. Though it is always, of course, worth checking on the specific reputation of any author whose commentary you are reading. 

If you want secondary literature, you normally have to go to a separate edition. These texts again vary widely based on the specific content - as these things tend to be in philosophy, where interpretations of thinkers vary greatly - but a good starting point are the companions put out by Routledge or Cambrdige. But, again, do some research online for specific recommendations first.