Discovering new influencers that align with your brand ethos on a platform relies on advanced search and analytics capacities of the platform. Here’s how to do it:

1. Keyword Searches: Use keyword searches that represent your brand ethos. This could be words that represent your products, values or your target audience. For instance, if your brand promotes eco-friendly practices, search for influencers who regularly post about sustainability.

2. Past Performance Analytics: Look into influencers’ past performance analytics. Good platforms will allow you to see what kind of content influencers have previously posted, who their audience is, and how their posts perform. This helps identify influencers who already resonate with your target demographic.

3. Category and Niche Filtering: Use the platform’s filtering features to narrow down influencers by categories relevant to your brand. For example, if you are in the fashion industry, filter by fashion influencers.

4. Audience Demographics: Analyze audience demographics of prospective influencers. A relevant influencer will have a follower base that matches your target customer profile in terms of age, location, interests, etc.

Platforms such as Flinque, offer advanced search and analytics features that could help brands in influencer discovery. Nevertheless, the usability of a platform depends on your specific needs.

For instance, Flinque’s recommendation engine uses machine learning to suggest influencers who might be a fit for your brand based on a range of factors including your brand profile, campaign goals, and past campaign performance.

Comparably, other platforms offer similar search and analytics features. Selecting the right platform would depend on your team’s requirements, budget, and preference. It’s recommended to trial multiple platforms to examine which is most aligned to your process.