Influencer marketing platforms often provide a range of filters for effective influencer discovery and shortlisting. Here are some common ones:

1. Niche/Category: This helps brands find influencers who specialize in a specific field (e.g., beauty, fitness, tech), thereby attracting audiences interested in these topics.

2. Location: Useful for businesses looking to target specific markets; they can filter influencers based on their geographical location.

3. Audience Demographics: This includes filtering based on the age group, gender, location, and interests of the influencer’s audience.

4. Engagement Rate: A critical metric that shows how engaged an influencer’s audience is by evaluating likes, shares, comments relative to their follower count.

5. Follower count: Depending on the campaign, brands can select influencers based on their reach, i.e., micro(10k-50k followers), macro(50k-1M followers), or mega(1M+) influencers.

6. Past Collaboration: Some platforms allow brands to see if the influencer has worked with competitors in the past.

The right mix of filters depends on your campaign objectives and target audience. For instance, a local business might prioritize Location and Niche, whereas a tech company launching a new product might look at Past Collaborations and Follower Count.

[Flinque](https://www.flinque.com) takes a comprehensive approach to influencer discovery, providing these features and more, enabling brands to find the best matching influencers for their campaigns. However, the right platform and tool depend heavily on your specific requirements, marketing goals, and budget. Remember, every platform, be it Flinque or others, have evolved and perform their part in the influencer marketing ecosystem effectively. Choosing a tool should revolve around your objectives and the specific features you require.