This has the list of writings, including the Bible and Apocrypha, of early Christians. and also has full text and guide and resources for further study. I was searching for “Shepherd of Hermas” and found this site. Besides the New Testament we have there were many Christian writings such as letters, poems and sermons etc during the early days of Christianity. We defined only some of them to be Canon, but that does not mean that all other books not included in Canon were heretic. It is interesting to check them out.