As an accommodation for students who may be new to this type of classroom discussion, you can pair groups for peer feedback prior to whole class presentations. (teacherstryscience.org)
Also, as with discussions, all students are involved in peer feedback in online classes, not just those who are most likely to speak up in class. (citejournal.org)
You can also get peer feedback on query letters, pitches and first pages in the forums. (stephaniescott.net)