I am looking for a Bible gathering commentaries of the Church Fathers verse by verse. Is there such a book or website?
The Catena Bible is freely available both at the linked website and as an app for Android and iOS, and provides related patristic commentaries for each verse.
Newbie can't comment, but Laridian has the Ancient Christian Commentary for $150 https://www.laridian.com/catalog/products/PCDACCS.asp. Buy once, use on multiple platforms. Not connected except by being a happy customer.
Joanna Manley's The Bible and the Holy Fathers probably comes closest to what you are looking for, although it only covers those Old Testament readings that fall within the Eastern Orthodox lectionary.