I watch videos and read articles and use LLMs to give me the key points to grasp the basics. Then build upon that knowledge with more focused learning.
I read everything I can find about it, especially if its people arguing thoughtfully, or sharing their advice/experience, or if its about the history of the topic. I get kind of obsessive about researching things so I usually come at a topic from a lot of directions.
You have to set a goal of what you want to understand and why you want to understand it, then read accordingly. If your goal is to know the usual number of eggs laid by a bird because you are trying to identify one from its nest in your yard, sure just read some Wikipedia and maybe read its sources. If you need to understand a broad topic in the social sciences in order to do your job or organize politically, well sucks yo be you, you need to spend months to years getting a handle on the various schools of thought and approaching them humbly and critically, reading many books.