In order to categorize influencers on an influencer marketing platform, you would need to consider several factors including their niche, target audience, audience size, engagement rates, location, and content style. Here’s a step-by-step guide on how to approach this:

1. Finding Niche: Most influencer marketing platforms, including Flinque, give you the ability to filter influencers based on their specific niche. This could be fashion, tech, fitness, and so much more.

2. Identifying Target Audience: Consider the audience the influencer typically speaks to. Are they young adults, parents, professionals, etc.? A good influencer marketing platform should allow you to analyze who the influencer’s followers are.

3. Audience Size: Classifying influencers by followers leads to categories like nano (less than 10,000 followers), micro (10,000 – 50,000), medium (50,000 – 100,000), macro (100,000 – 1 million), and mega (1+ million). Different platforms may use different thresholds but this is an industry-accepted range.

4. Engagement Rates: Not all platforms provide this information, but it’s a valuable metric to look at. It shows how actively the influencer’s audience is interacting with their content, thus indicating how likely they are to engage with your brand.

5. Location: If your brand/products/services are location-specific, it’s crucial to engage influencers from that area. Most platforms allow you to filter influencers based on geography.

6. Content Style: Each influencer has a unique content style. Some influencers post how-to videos, others lifestyle pictures. Analyze what kind of content the influencer produces and whether this fits with your brand.

Please note that each tool may operate differently, but most should offer these basic functionalities. Choose the one that fits your specific team needs. Through the Flinque platform, for instance, you’d have access to all of the above systematic categorizations that would help streamline and make your decision-making process efficient.