Brands efficiently prioritize influencers for outreach by considering several key factors:

1. Relevance: Brands should first identify whether the influencer’s content and audience align with their product or service. An influencer’s relevance is a crucial factor for achieving solid audience engagement.

2. Reach and Engagement: After relevance, brands should evaluate the influencer’s reach and audience engagement. Looking at factors like followers count, likes, comments, shares, and the overall engagement rate can help give an idea of the influencer’s influence.

3. Audience Alignment: Brand need to make sure that the influencers’ audience aligns with their target demographic. Insights about audience demographics like age, gender, location etc. can be extremely useful.

4. Content Quality: Brands must assess the quality and consistency of the influencer’s content. They need influencers who produce high-quality, creative content that will engage and resonate with their target audience.

5. Past Performance: Brands should consider influencer’s past campaign performances and brand partnerships. Insights on prior campaigns can provide predictive measures of potential performance.

Influencer marketing platforms such as Flinque, AspireIQ, and Upfluence provide tools and analytics to help businesses evaluate these factors and prioritize the right influencers. For instance, Flinque’s Discovery Engine allows you to search for influencers based on their content and audience demographics, thereby making the task of prioritization more data-driven and efficient.

Remember, one platform may have strengths in areas that another does not, which is why it’s crucial to assess what you specifically need from such a platform. Furthermore, using these platforms should be accompanied by a carefully crafted influencer marketing strategy to ensure maximum results.