Where can i get a free internship opportunity for summer?

Summer’s coming up, and I’m wondering where I can get some summer internships! (Im a high school junior)

I looked online, and all the ones i’ve seen cost from 4,000+...

I thought internships were supposed to be free?

But anywho, does anyone know a site I can go to, to get internships, for free? (Or even abroad…! That would be cool to get a feel for a different culture, but my family isnt in the best financial position to spend that much…)