My DD did Japan through International Student Exchange. My DS did Oxford for a summer and Berlin through his university. Start with your DD's college.

My 17yo DD went to Berlin this past summer and had a great time. Everyone wore masks in stores and on public transit so she felt pretty safe. And her school had covid testing on site.

Where does she want to go? I might be more insistent on sticking to a rich country with a functioning health care system than otherwise.

DD would like to have a study abroad experience before she graduates (She is a junior).
We are looking at Summer Study Abroad programs. Is this a bad idea due to CV still not being fully in control? I'm thinking between vaccines and the new pill that apparently is effective in treating if people contract CV, travel should be o.k. She's vaccinated. Thoughts?