CreatorDB - Data-Driven Influencer Marketing
Mattermark Daily - A curated newsletter of blog posts from investors & founders
Listory - Your shortest path to content that matters
Folloh - It brings all the news you want from around the web
Influence Grid - TikTok influencer discovery platform.
LetterHunt - LetterHunt connects you to 10,000+ niche, active newsletter writers to promote your product.