I think the paid internship is the best of the five options here. The program already exists and is successful, and paying interns would both increase access now and in the future as former interns eventually become sector leaders. It is an investment in people.
However, I am concerned about the longevity of it. As soon as the funding runs out, the problem will return. Perhaps the interns could use Steem to generate revenue while completing their projects to generate funds for more interns. I'm still worried that this would be very hard without the help of some whales.
In addition, we need to make sure the pay per intern is high enough, which may mean limiting the number of paid interns more than we would like. And if Art Reach does want to keep some Steem to use as Steem Power, that limits the available funding even more.
I like supporting the Black History Collective as well, but I'd like to see how they would propose to use the money before committing more fully.