The Council on Foreign Relations maintains an interactive map of countries known to be participating in China's Digital Silk Road, which includes a number of countries in Africa. The map does not, however, include every country to which China provides some digital aid, financing or investment, as many of these arrangements remain opaque.
The title of the posting is "Assessing China's Digital Silk Road Initiative: A Transformative Approach to Technology Financing or a Danger to Freedoms?"