After you have thought about possible topics, the next step in the research process is to perform some background research about your topic. There are a few different ways to perform this sort of research. At this point, the idea is not to learn everything about your topic, but to gain a foundation of knowledge about it in an effort to start thinking about the angles or ways to focus the topic into a research question.
As you read through these types of articles, you can start making lists of possible ways to focus your topic. Since the goal is to learn more about the topic, generally, make sure to read more than one source so you can see different points of view on the topic.