While there is always more to say, certainly with regards to a booklist, a fine place to start the search for reliable, contextualised, analysis is this excellent thread, led by the remarkable u/sunagainstgold:

The Stonewall Riots are generally considered the beginning of the modern LGBT rights movement, but gay rights groups had existed long before 1969. What made the post-Stonewall revolution so impactful and what changed to make gay rights movements more cohesive and vocal?