Hey @Ethan_Thorn! To join our read-a-longs and watch-a-longs, all you have to do is comment on the thread. You can see a list of our ongoing and past threads in the Sinister Citadel. You can also see everything Obscurity of DC-related in #obscurity-of-dc-club.
I hope this helps! Feel free to reach out to me if you have any more questions 