At least for US history, a very good starting point is the Oxford History of the United States series. In addition to each book giving a broad narrative of the period at hand, they each contain a historiographical essay that lays out the relevant writings on a subject.

You might also want to contact your local university's research library to see what resources they have. Googling for a graduate syllabus in a subject can also be useful: most professors (not all), will include a lengthy list of relevant or suggested readings.

Some universities publish course reading lists online. You may not get bibliographies for every topic or for incredibly specific ones but for general periodic or event focused history you can find some good ones through Google. For example, here's one on US history from the University of Glasgow, Civil War specifically from Rutgers, University of Kent.

Obviously these won't give you a complete list of all historiography ever written on a topic, but it will usually be the most up to date in terms of the historical debate. You can also search WorldCat on a topic if you want a fuller list. This requires a bit more discretion on your part in terms of filtering what's relevant to your interests but it's a good way to see if you've missed anything. I used this method towards the end of writing my PhD just to make sure I hadn't missed anything really important.

I would also second the Oxford History, Cambridge has also published a similar one for Latin America. They're huge multi-volume works but even just searching their bibliographies is helpful (in addition to the literature review essays).