Your elective classes are the best way to display your passion to the admissions committee. The classes should expand your skill set beyond what a normal class would. Take classes like Computer Skills or Art Studio to diversify your experience. It is important to consider the trade-off between your core classes and electives. If you can fit in another core class rather than an elective, it is better to take the core class.
These are some programs that are popular among high school students. This is by no means an exhaustive list of nationally recognized programs. Boy’s/Girls States