How were Mutapa Empire and the Songhai Empire similar?

Mali and Songhai are very similar. Both Mali and Songhai had very famous and successful rulers. Mali had Sundiata and Mansa Musa while Songhai had Sunni Ali and Askia Muhammad. Both empires also were able to expand the empire and make it bigger. Both empires also had military leaders that were good at conquering. Sunni Ali conquered Timbuktu and Djenne for the empire of Songhai. Mansa Musa also expanded Mali to twice the size of Ghana. This proves that both empires were excellent in expanding.