the reason the ones on digital ocean are good is because 1) reasonably consistent format, at least visually anyway. 2) curated. they actually review submissions

the reason the ones on digital ocean are good is because 1) reasonably consistent format, at least visually anyway. 2) curated. they actually review submissions. 3) if your guide gets accepted, you get some DO credit or something. so, there's an incentive for quality material.