Mostly none... just what is on hive source and a bit of my experience.
But I am building a guide to my own. I will then probably try to explain people what parts are which. I might be able to forge a version of it for people and explain a bit of my rationale behind it.
I feel like a lot of Hive is here is the source code / gitlab etc... best of luck.
More guides are needed to onboard people.
I agree... first I need to go through the experience. Then I will feel more confident to share and educate.