More information will be added here over time.
The Chicago Manual of Style, 17th edition, has a section on bias-free language, starting with section 5.251, Maintaining credibility. CMOS17 is available through the K-State Libraries (https://www-chicagomanualofstyle-org.er.lib.k-state.edu/book/ed17/frontmatter/toc.html -- eID and password required).
The AP Stylebook includes entries on gender-neutral language, gender and sexuality, and race-related coverage. The stylebook also includes guidance for using “they” as a singular pronoun (discussed in a blog post in 2017, https://www.apstylebook.com/blog_posts/7). These sections can help guide you as you try to use more inclusive language. Many people use the AP online stylebook, www.apstylebook.com, which is available by subscription. You can also purchase recent editions of the book.
Gender Inclusive Language, The Writing Center, University of North Carolina: https://writingcenter.unc.edu/tips-and-tools/gender-inclusive-language/
The Apple Style Guide includes a section, Writing Inclusively, that gives many helpful suggestions, as well.