I have one group of freshmen this fall that is quiet and will rarely speak unless directly called upon. This is true of them when they're in my classroom and when they're on Zoom. So I call on them directly and I have them complete exit tickets in Flipgrid. Recently, I've started polling them at the start of class so that I have a bit more information about what they're thinking and how they're feeling before I jump into the day's plan.
I'm using Poll Everywhere in Google Slides to conduct my polls because I like the word cloud output option. Slido and the native Q&A function in Google Slides can also be used for polling.