Reader request — German e-courses?

This is a long shot, but you never know . . .

My son is starting high school, and the high school he’ll attend doesn’t offer German, which he wants to study (3 romance languages and Mandarin, but not German!), so one of my projects is to research ways of making this possible outside the high school day.

Hence, the reader request:  do any of my (small, but encouragingly growing) number of readers have any suggestions for some kind of e-course that could garner him academic credit?

Thanks in advance, as they say!