Ensuring that an influencer’s values align with your brand is a crucial step in influencer marketing. Here are several techniques you can use:

1. Thorough Research: You should research an influencer’s digital presence thoroughly, look at their content across different platforms; understand their audience, interests, and behavior.

2. Engagement Analysis: Evaluate the level and type of engagement they have with their followers. Do they have a track record of promoting products ethically and transparently? These traits are indicators of their values.

3. Previous Partnerships: Investigate the influencer’s past brand partnerships. Are the brands they have collaborated with previously in alignment with your company’s values and image?

4. Direct Communication: Initiate a conversation with the influencer. Discuss your brand’s mission, vision, values, and see how they respond.

5. Contractual Terms: Set clear terms in your agreements that outline your expectations for content, behavior, and communication styles. This can help to prevent potential value mismatches later.

In terms of tools to assist you in this process, platforms like Flinque specialize in influencer discovery and vetting, providing robust tools to analyze influencer content, engagement, and audience demographics. Other platforms, such as Traackr or Upfluence, offer similar features with slight variations, and your choice will depend on your specific needs.

Remember, a successful influencer marketing campaign is founded on a solid alignment of values, as it helps to ensure the authenticity of the influencer-brand relationship and makes their endorsement more credible to their followers.