This list was compiled by Creative Hiphop (An International African Hiphop Site) and I must say it's a credible one.

10. Da L.E.S ft. AKA and Burna Boy - PAID
9. Yung 6ix ft. Oritse Femi - Blessings
8. Fecko - Hustle Over Feelings
7. E.L - This Is Crazy Chale
6. Vector ft. Phyno, Reminisce, Uzi & Classiq - King Kong (Remix)
5. E.L - All Black ft. Pappy Kojoe and Joey B
4. Loose Kaynon x Ice Prince x Milli - Go Hard
3. E.L - 10 Rap Commandments
2. Sarkodie ft. Ace Hood - New Guy
1. DJ Dimplez ft. Ice Prince, Emmy Gee & Ricky Rick

Source: http://www.creative-hiphop.com/2015/08/10-hottest-african-hip-hop-songs-of.html

never heard of them
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.itskinglee