I’ve already read it, so I can’t participate exactly but I could help with tricky parts.
One thing to watch out for is Jujutsu Kaisen is actually pretty tricky! I’d put it as solidly intermediate-level. Gege loves to use older and more obscure kanji for things like technique names (of which there are a looooot). Also Gege’s handwriting in the between-chapter pages is very bad so deciphering that takes a whole lot of getting used to. On the plus side though, there’s furigana over 100% of the main text!
I don’t mean that as a discouragement! Just some info to help you find people to read with and scope it out.
One way to try to muster a group together might be to nominate it in one of the general book clubs, I don’t usually participate in those threads so there might be a good place to go to ask around for people to join that I don’t know about, also!