At the website https://bible.org, W. Hall Harris III and James M. Arlandson have helpful posts on the differences and similarities between John and the Synoptic Gospels. Felix Just lists many of the passages that are only listed in either John or the Synoptics or the common material that is retold in very different ways. James D. Dvorak has an article for the Journal of the Evangelical Theological Society freely available online that reviews the scholarship on this question up until 1998. Sarah E. Rollens has a review for Marginalia on James Barker’s contribution about the relationship between the Gospels of John and Matthew.
The Similarities and Differences between John and the Synoptic Gospels