How do you find a fallacy from a newspaper editorial,and an opinion magazine?

Opinion magazine? It sounds like the whole thing could be fallacy-it's someone's OPINION.

Research seems to be the only way.

You might want to check out the following link:

https://www.askmehelpdesk.com/other-society-culture/finding-fallacies-89450.html

Or, the following:

https://www.askmehelpdesk.com/reading-writing/fallacies-writing-87606.html