Invision Community
vBulletin
XenForo
Flarum
Discourse
MyBB
Mobilize
NationBuilder
Asgaros Forum
Vanilla Forums
Forumbee
Discourse
PunBB
phpBB
XenForo
jforum
Based on our record, Asgaros Forum seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Why not? https://wordpress.org/plugins/asgaros-forum/. Source: about 2 years ago
Asgaros Forum does kinda what you're looking for: I setup Categories (Genre) and then in each was able to setup a Topic (forum) and then a sub-topic (chapter). This is what my layout looks like (quick messy setup). Source: about 2 years ago
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Forumbee - Forumbee offers community forums for discussions, feedback and Q&A.
Flarum - Flarum is the next-generation forum software that makes online discussion fun. It's simple, fast, and free.
Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.