Check out #bookstr here on Nostr. Booktok on TikTok is also good but veers more towards smut. For clubs you can find good groups in person near you but also online in Meetup. Any larger university or city will have in-person and online options for literary or philosophy clubs that might not be listed elsewhere.

I just kind of blast randos on Nostr about my book readings and philosophy and it works out well! You're interested in what I'm interested in so maybe we should be friends 🤝