I'm interested to merge the ideas of a book club with a curated, hand-picked suggested reading list:

Partly book club functionality (folks with similar interest reading similar/same books and interacting in the forums or maybe answering interesting Qs from the moderator).

Partly tags/book-list functionality (selected titles curated by the moderator, and possibly with polls or admin-rights to let the group suggest or vote on titles)

But without requiring meetings or specific dates, in order to get a book on to the curated list. (Which doesn't seem to be possible with book club functionality right now. I think?)