Everybody else has made some good, solid suggestions, none of which I can disagree with. So, instead, I’ll give you a list of authors which, IMHO, would be good ones to avoid if you want solid Christian (especially Catholic) theology. Ergo, stay away from the following:
John Dominic Crossan.
Again, this selection is simply MHO. I would also include anything written after 1980 by Hans Kung and Richard McBrien, but that’s just me, and you have to remember that I tend to be extremely conservative in affaires d’religioux. Some of these are weirder than others; on the whole, Crossan and McBrien are just a little ways off; Curran and Kung are noted Catholic dissidents (meaning they disagree with what the official Catholic Church teaches), and Stallings and Fox are both waaaaaaaaaaaayyy out in left field. I would avoid the last two especially if you’re looking for orthodox Christian viewpoints, although Fox can be entertaining if you happen to be a devotee of either weird fiction or abnormal psychology.
You probably already know this, but I will add to this list of them to avoid any writings by the following:
Mary Baker Eddy
Charles Taze Russell
Herbert W. Armstrong
Jack T. Chick.
There. Keep that list handy, run from works by the people on it like you would from the plague, and you’ll do well, my son.
Consider it to be sort of your own private Index of Forbidden Books.