When I was in college, my Creative Nonfiction professor would regularly have us do something she called "hotspotting" (she didn't know that this was already a term tbc) with our rough drafts. Basically, hotspotting is when you look at your draft and pick out your favorite sentence, or one of your favorite sentences--one that you're really proud of--and write it down in a blank sheet in a notebook. Not a new document, a physical notebook. (You are not allowed to use technology for hotspotting.) And then you set a timer for however long--like maybe ten to twenty minutes--and you elaborate. You treat that one sentence as if it's the opening sentence to a new draft, and you write from there, until the timer is up.
It sounds like a gimmick, but honestly, some of my best writing in that class came from hotspotting. Usually, the sentence you consider the "best" is the one that really gets to the heart of something you're trying to convey. In a rough draft, it tends to be that you're fumbling around a bit before you really hit on the heart of things. So with hotspotting, you're starting from a less fumbly place, which means you're able to dig into your subject in a much deeper and more precise way. It makes you feel like a surgeon, a little bit.