How do I decide what I want to minor in?

My advice to any under grad is to follow your heart. Study whatever you think is interesting. Nobody should tell you what to minor in. Why are wanting a minor in addition to a major? Is it necessary?

By all means, study each of them to get started! You will probably realize over time that you like learning some of them more than others, or that you don't like learning them through college classes and would rather learn them through taking trips or researching on your own.

The best advice I received in college was to take professors, not classes. That's because a great subject taught by a professor with a style you can't stand, won't be a class you'll enjoy. And a fantastic professor will make any topic great to learn. So find professors you like in each of these topics and learn as much as you can from them. Ask them for advice about how to strengthen your career path through their subject. Stay in touch with those professors and continue learning from them after college.

I was interested in many topics in college, and managed to "create my own" minor that used all of those classes so I got credit for them on my resume. See if the college you choose offers that option.

Remember, college isn't the only way to learn these topics and learning shouldn't stop there! There will be more classes you can take after college, along with books, life experiences, and people you can learn from.