This task can be performed using TopYappers
Influencers Database with Signals
Best product for this task

TopYappers
social-tools
Influencers database which allows you to query which influencers talked about your or your competitors products.

What to expect from an ideal product
- Quickly searches through past social media posts to find influencers who've promoted products like yours
- Shows you detailed engagement stats for each influencer's previous product promotions
- Lets you filter influencers by niche, audience size, and past promotion success rates
- Creates lists of influencers who have worked with your competitors, making outreach more targeted
- Saves screenshots and links to previous promotional posts as proof of influencer experience