Here is an emphatic recommendation from @billsherman, which appeared as No. 168 on his own thread, “Historian of Early Christianity … Ask me anything”
As an example, let me quote you one great modern scholar on Jesus: “Hence, from a purely philological and historical point of view, the most probable opinion is that the brothers and sisters of Jesus were his siblings. This interpretation of the NT texts was kept alive by at least some Church writers up until the late 4th century.”
This statement, while backed by solid historical work would likely be considered controversial by Catholics. It was written by John P. Meier. You can find it on page 332 on volume 1 of “A Marginal Jew.”
The book carries the Imprimatur from The Most Rev. Patrick J. Sheridan, of the Archdiocese of New York. The author, John P. Meier is a Catholic priest, incardinated in that Archdiocese, has had this specific book praised by Pope Benedict XVI, and has won more awards from the various Pontifical Institutes than I can possibly name.
History and faith are not the same thing. One cannot disprove the other. Father Meier has written beautifully about how he can historically question things like the virgin birth, but still hold that belief as a core piece of faith. I highly, highly recommend his work.
His repeats his recommendation in several other posts on the same thread, which ran in January and February of this year on the Non-Christian Religions forum.
Historian of Early Christianity waiting for school to start … ask me anything!