Just had a thought. If you would like to put more effort into it there could also be a read2gether feature. You just invite a friend via link and only when everyone pressed their next page button the next page is shown. From my experience it is sometimes really annoying to stream it via discord...
Would be nice to add someone as a friend (and have easier access) to all of their list and ratings (my other suggestion). Additionally lists and ratings could be only visible to friends instead of public or private.