Here are some websites with resource lists for multicultural books:

Multicultural Children’s Book Day Booklist

https://multiculturalchildrensbookday.com/multicultural-reading-resources/diversity-book-lists-for-kids/

Cooperative Children’s Book Center 50 Multicultural Books Every Child Should Know

https://ccbc.education.wisc.edu/books/detailListBooks.asp?idBookLists=42