The posts on your blog index page are based on the newest to oldest.
If you have priority or popular posts that you want to highlight, Roam allows you to feature these posts to the top of the results.
To Feature your posts head to Pages > Unique Pages > your Blog page entry (this page might be called something slightly different depending on your theme).
Then click the + Add Featured Article button and choose your posts. These posts will then show above the other entries regardless of their post date.
Note: Depending on your theme’s design the featured post may display with a different design compared to your standard posts. To discuss design elements with us further please get in touch via email@example.com.