Here, I will like to mention @ehiboss as a prominent Steemian and an influencer, particularly in Nigeria and sub-Saharan Africa. He's the brain behind the "SteemIT in Nigeria" (SIN) event which has been creating massive waves on air (within and beyond the crypto space) and has been one of the avenues to create massive adoption of the Steem blockchain in Africa.
The third annual edition (SIN3) of this event is coming up in August (UYO, Southern Nigeria) and no doubt, it will see many attendees signing up into the Steem blockchain.
i second this