Quarto has a lot of extensions. The ones that I feel deserve some focused attention is the set of shortcode extensions that produce icons. There are quite a few good ones so far! This little repository provides examples you can use for these high-quality extensions:
fontawesomematerial-iconsbsiconsacademiconslordiconiconify
Each of these icon extensions is covered in its own .qmd file. You can clone this repo and render those files with quarto render <qmd-file>. Check out the rendered doc! Edit the source and see what happens! Adapt these examples for your own work and profit.