What are the best online cryptocurrency exchanges in Zambia?

As a keen observer of the cryptocurrency market, I'm curious to know which online exchanges in Zambia offer the most reliable and efficient services for crypto enthusiasts. Could you elaborate on the key factors that one should consider while evaluating these exchanges? Factors like security, liquidity, supported cryptocurrencies, ease of use, and customer support would be particularly interesting to understand. Furthermore, are there any specific exchanges in Zambia that stand out for their unique features or services? I'm eager to learn more about the options available for crypto trading in this region.