The World Science Scholars' advanced online science courses (college level) offered to high school students sounds like an interesting enrichment opportunity during this COVID-19 pandemic, when many in-person camps, classes, and opportunities have been cancelled or postponed indefinitely.

They give the current registration deadline as March 2021, for participation during the 2021-2022 school year.

After a quick perusal, I could spend several hours viewing items of interest in their video library.
smile