question about Church Fathers

Is there any good books or links to read on Comparisons between our church fathers, and what we teach today.
And what would be deemed Heritical by them and by us today?
Or accepted by us as good, or bad.?

There is an ongoing thread on this theme, I suppose you haven't seen it yet:

[url=https://www.sermonindex.net/modules/newbb/viewtopic.php?topic_id=25726&forum=35]Will the real heretics please stand up by David Bercot[/url]

ok thanks.