The United Kingdom of Kongo-Portugal: a constitutional Monarchy, with ex colonies in the Carribean and Brazil that are part of a Lusitanian-Lingala Association of Nations.
Islamic Empire of Songhai-Morocco, a proud sufi nation that is industrializing.
Republic of Egypt, founded in 1820 it has conquered Chad, Sudan, and defeated the Senussis of Benghazi.
Ethiopia of course
Independent South African Union of some sorts, without apartheid
Mughal East Africa including Somalia and Eritrea.
Madagascar: industrialized and multicultural.
Coastal West Africa, collection of vassals to either Morocco or the UKKP.