Good summer programs for sophomores

I am a current high school sophomore and looking to be productive with my summer this year. In the past, I spent summer playing summer softball, doing pre season volleyball and summer homework. Not much of anything as a whole. This summer I’ve already looked into volunteering at a local hospital, taking a business class online (required for graduation) but I’d also like to do some sort of week long program. I’ve looked around a lot and can’t seem to find what I’m looking for. I will be a rising junior, and my school does not get out until late june so preferably the start of the program would be in july or august. Also, my family is not very wealthy so it needs to be relatively inexpensive, and preferably 1-2 weeks, 3 at the most. I am also currently interested in the medical field, so I would like to do something with that. However, the only ones I’ve seen for medicine so far have been extremely overpriced and many people on College Confidential did not recommend them. So please if you have any ideas let me know!! Thank you!!!