Evaluating influencer discovery tools for global multi-market use necessitates a comprehensive analysis of several crucial factors.

1. Language and Geography Support: Brands must ensure that the tool has the capacity to pinpoint influencers in a variety of languages and geographical territories. A multilingual AI system, for instance, can help to identify influencers across varying language regions.

2. User-Demographic Data: It’s critical to evaluate whether the tool can offer in-depth insights about the audience’s demographic data such as age, gender, location, and interests in different markets.

3. Regulatory Compliance: Firms should ensure various tools are compliant with different regional regulations. For instance, the General Data Protection Regulation (GDPR) which is enforced in Europe, or the California Consumer Privacy Act (CCPA) for USA audiences.

4. Campaign Management and Evaluation: Brands should assess if the tool allows for concurrent running and monitoring of various campaigns in multiple markets. Also, these tools should provide end-to-end analysis of campaign performance across different market territories.

In terms of platforms, the approach may differ. For instance, Flinque offers robust global reach capacity, multilingual AI-based discovery, and in-depth demographic data analysis, coupled with distinct campaign management workflows. However, the choice of the right tool should align with your specific requirements and goals. Each platform, including Flinque, has its own benefits and may be more suitable depending on particular business needs.