Create 10 practical strategies on how brands and marketing teams can effectively use data-driven influencer marketing to precisely target audiences and make campaigns measurably more successful.

Context: [Influencer marketing, data analysis, audience insights, social media, campaign optimization, KPIs, influencer selection, performance marketing, ROI, tracking, content strategy]

Goal: [Improved selection of suitable influencers through data-based criteria, optimization of campaigns based on KPIs, increase in reach and engagement, better measurability of marketing results]

For each strategy explain:
1) the specific use of data or analytics tools in influencer marketing
2) examples of relevant metrics, tools, or approaches for implementation
3) notes on advantages, challenges, and best practices

The strategies should:
- consider various social media platforms and influencer types
- be practical and suitable for marketing professionals with different levels of experience
- focus on measurable and targeted campaigns