Reelio - The best video influencers for your brand
FameBit - Easiest Way to Find, Hire, and Work with YouTube Influencers
Yup - Tutoring platform for Math, Chemistry and Physics.
BuzzSumo - BuzzSumo allows you to discover the most shared links and key influencers for any topic. It's free to use and you can run a search in seconds!
BuzzGuru - All-in-one influencer marketing solution
inzpire.me - An end-to-end solution for influencer marketing