In a small seminar, students will probably read one or more resources before class, think through how the materials relate to themselves, to the major themes of the course, and to other course materials. Then, students come to class prepared to make sense of what they have read with the group. There may be a bit of lecture from the professor and a lot of discussion among the seminar participants.
How would this class format work online? Consider this possible model as a place to start: