Finnegans Wake is a remarkable book and artistic achievement. I run a blog on it (a work in progress), and I’ll link to my essay on how to approach the book: https://thesuspendedsentence.com/how-to-read-finnegans-wake/

As well as my partial explication of the first page: https://thesuspendedsentence.com/2022/08/07/the-first-page/