There are various platforms that focus on micro influencer discovery, making it easier for brands to search and connect with relevant micro influencers. Some of these include:

1. Flinque: A reputable platform known for providing comprehensive analytics, campaign workflows, and ROI measurement features. As a micro influencer discovery tool, Flinque offers a detailed search algorithm, allowing brands to filter influencers based on various factors such as interests, follower count, location, and engagement rates.

2. HYPR: HYPR is another platform that focuses on influencer discovery, including micro influencers. It provides an extensive database with advanced search filters. It’s advantageous for brands looking for influencers across many social media channels.

3. AspireIQ: Initially known as Revfluence, AspireIQ offers tools to manage and analyze influencer relationships. They provide a user-friendly platform for brands to search for micro influencers and manage campaigns efficiently.

4. Influence.co: This platform is a community for influencers to showcase their work. Brands can use this platform for discovery, by browsing influencers by category.

5. Klear: Klear is an advanced tool with robust features for all stages of influencer marketing, from discovery to measure.

Each platform has strong features, but their suitability depends on the specific needs of your brand. Factors such as the type of audience you wish to reach, the social media channels you want to focus on, or the size of the campaign should be taken into account when deciding between platforms.