The best way is to look for "Call for Book Chapters" in reputable publishers that align with your field. From there the guidelines are straightforward

I agree with what has been said, publishers have different guidelines for book chapters. Remembering that the chapter a little more depth in the subject work in addition to the results and methods applied. Respectfully, best regards.

See also these related discussions:

https://www.researchgate.net/post/What_is_difference_between_a_book_chaper_and_research_paper

https://www.researchgate.net/post/Can_you_suggest_how_to_seach_and_submit_a_book_chapter

https://www.researchgate.net/post/Hi_everybody_I_want_a_guidance_to_write_and_submit_a_book_chapter_Can_you_give_your_suggestions

https://www.researchgate.net/post/Publishing_research_article_as_a_book-chapter_or_in_a_peer-reviewed_journal_Does_it_make_any_difference

https://www.researchgate.net/post/Suggest_me_some_book_publishers_who_can_publish_review_or_research_work_as_book_chapter_national_and_international

https://www.researchgate.net/post/How_to_publish_book_chapters

I align to what has already been proposed, that publishers have a dossier of publishable works and so could be contacted.