The next step is to evaluate the credibility and authority of the influencers you have shortlisted. Credibility is a measure of trustworthiness and authenticity, while authority is a measure of knowledge and influence. To assess these factors, you can use metrics such as engagement rate, reach, reputation, and relevance. Engagement rate is the amount of interaction the influencer generates with their content, such as likes, comments, shares, and clicks. Reach is the number of people the influencer can potentially reach with their content, such as followers, subscribers, and visitors. Reputation is how the influencer is perceived and respected by their audience and peers, such as reviews, testimonials, awards, and endorsements. Relevance is how well the influencer's content and style align with your brand, message, and audience, such as topics, tone, values, and aesthetics.