Ancient Christian Commentary on Scripture has many commentaries from the first thousand years of Church history.
Yeah I thought this was only an online thing and it was done by protestants? Or am I wrong?
I was under the impression that it wasn't a commentary so much as a florilegium*... just quotes from various Church Fathers. I do think it was put together by Protestants, so that bias might be there in the quotation selection (as opposed to Orthodox or Catholic bias). After that I'm not sure that there is anything like what you're asking for, though fwiw we do have this thread
*Sorry, I like using that 10-cent word when I have the opportunity!