How do I make a good research question regarding homeschool education in the 21 century?

Start with some general research to find out which aspects of your topic interest you the most, and see what kind of information is already available that you can use to support your own arguments. Respond to others’ claims with your own questions, and think about the type of research you’d have to do to find answers. Consider how much time you have to finish the paper, and how long it has to be. Has your question already been answered completely, or do you have a new perspective on the topic that you want to explore? Is there enough information out there to provide answers without being overwhelming?
A good research question addresses a specific issue, without being too broad (“How do parents in the United States home school their children?” would have to cover so much information that your research would turn into a book) or too narrow (“How many children are home schooled?” can be answered with just a few numbers, so that doesn’t provide enough material for a thorough research paper).