Google wants articles to have these things:

Annotated visuals, concept maps, and infographics

tips or advice

case studies

analogies

checklists, downloadable templates or worksheets

how to steps

some interactive tool or chart etc

faq section

other readers feedback

recommended books or supplementary reading materials

recommended videos

Comparison Tables pros and cons

Common Mistakes to Avoid

key takeaways

quote subject matter experts

practical examples

summary sections throughout (recaps)

all this together make the article information that more useful to the reader