The only Nigerian owned exchange way I fit recommend na Roqqu. Their p2p dey fast and their rates dey okay.
You see this Roqqu exchange personally is one of the few local exchanges that i have personally had problems with, they were usually my best easy platforms to convert my bitcoin or stable coins to fiat. Although to be sincere they weren’t having one of the best rate to me then because rates from top exchanges like binance and KuCoin then were much better than Roqqu.
Two of my worst case scenario was that I had a transaction then and wasn’t credited the Naira in my local bank I lodged complaint of the transaction before reversed to Roqqu but they had one of the worst customer care service and I had to abandon the exchange with my lost funds then. They also have deposit cap that was to high then in my perspective.