Once you have defined your goals and audience, you can start researching and evaluating potential influencers. You can use various tools and platforms to find influencers in your niche, such as BuzzSumo, Upfluence, or AspireIQ. You can also look for influencers who are already talking about your brand, industry, or competitors. When evaluating influencers, you should consider their relevance, reach, engagement, and reputation. You want to find influencers who have a strong connection with your target audience, a large and loyal following, a high level of interaction, and a positive and authentic image.