https://books.google.com
you get a list of book previews that have content may be useful

chord progressions
https://www.google.com/search?tbm=bks&q=chord+progressions

reharmonization
https://www.google.com/search?tbm=bks&q=reharmonization

songwriting
https://www.google.com/search?tbm=bks&q=songwriting

music theory books
https://www.google.com/search?tbm=bks&q=music+theory+books&oq=music+theory

if you found this post useful list searches you found helpful