Here is my list

CAR has no serious contender when it comes to the title of the most obscure country in Africa, for me. Others in my top 5 are;
2. Sao Tome and Principe
3. Mauritania
4. Niger
6. Comoros

List down your top 5

Niger
Western Sahara
Gambia
Madagascar
Swaziland

Sahrawi Arab Democratic Republic