We read 密やかな結晶 since we all have a copy of it and want to read it.
We could take turns leading for 4 weeks at a time.
I’ve had a quick look and I think there are 28 chapters. They probably won’t be equal in length but I think that is about 15 pages per chapter on average. So the simple starting strategy would be to read a chapter a week and see how we are getting on.
EDIT: By the way, I have a script to produce the home post and the weekly posts (or entries in a thread if I like) so either I could start and set the format that you can then copy if you like, or I could always post and you (two?) could more tend to running the club contents-wise. You can have a look at any kinda recent book club I ran to see what it looks like and whether you like it.
Coincidentally, 猫を抱いて象と泳ぐ currently has a coin cashback of slightly more than 50% at BookWalker. Will grab it EDIT: Grabbed it just in case
(grabbed it because I just received the coins from the Bookmeter Review Challenge, so I can rightly say that I bought this book from money I earned through my Japanese skills )