What is the best tool for influencer marketing ?

https://sparktoro.com/ is one of the best tools out there. My agency Tetriz.io can help you find relevant influencers if you wish.

Tracker. If you're looking to use influencer marketing to drive more traffic to your online store, Tracker is a great solution. As one of the top eCommerce influencer marketing platforms, it offers a wide range of features and tools that you need to make the most of affiliate programs and influencer marketing

Hi, recently discovered https://www.favikon.com/ and seems legit for its goals.

Vamp is great. They’ve got an invite only community of influencers (so high quality, high trust) and you can collaborate with them either through a self serve platform, or with campaign manager support.