Are you asking this to get new sources for you, or because you are simply interested in what we read? If the latter, I think "Die Weltwoche" is quite good. But it's in German.
That's a very good and very interesting question. I often do my own research or try to look at what is said, in a wider context. With more complex topics it is more difficult and time-consuming or, depending on the case, not possible at all. However, I think that over time you will be able to recognize certain propaganda patterns, because they always repeat themselves in a very similar way.
