Fitness/Food Influencer Lead List Creation

I am personally seeking assistance to build a concise list of influencers within the fitness and food niche on YouTube. These influencers should predominantly be located in North America and Europe, hence familiarity with these regions will be beneficial. The main requirement is for influencers who have a medium-sized audience, specifically between 500k to 1 million subscribers, thus demonstrating they have a significant, though not overwhelming reach. Skills in data collection, an understanding of YouTube's platform, and perhaps previous experience working with influencer marketing or advertising would be ideal for this role.

Check out the csv file attached below