This seems quite interesting - what would it take for the spread of this strain of Fascism throughout the Third World?
Hard to say: Italian-style Fascism, despite being the originator and overall the most ideologically flexible, would be heavily associated with the brutal occupations of Libya and Ethiopia, and probably turn off a lot of Africans on the concept just on that alone; Nazism is straight out, for obvious reasons; Spanish-style Falangism was attempted and came closest, but ultimately failed to get anywhere (the same would probably hold true with Polish-style Falangism); other strains of Fascism like Rexism or Legionarism (i.e. the Iron Guard) are probably too niche and specific to their source countries to be compatible to any African country...
That leaves French and British strains as possibilities, considering they are the major colonial players (Mosleyism might the most likely candidate), but Africa's antipathy against the French and British due to their long histories on the continent may prove to be too much of a roadblock for Fascism to become popular enough locally to evolve an anti-colonialist strain.
Though there is one other strain: Brazilian Integralism. Unlike most other strains, Brazilian Integralism did not have any sort of racist/anti-Semite component to it as first formulated by Plínio Salgado (Gustavo Barroso was the one responsible for creating the anti-Semitic faction, something that Salgado was not happy about). Being uncharacteristically heterogeneous and tolerant compared to other Fascist movements - while still being intensely anti-Marxist and nationalistic - could make it a viable candidate as the basis of an Afro-Fascism ideology.