Tubics - SEO & analysis for YouTube videos
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
VidIQ - Generate tags for YouTueb Videos. Works as a browser extension .
SEOmator - SEO website analysis & audit tool
Biteplay - Create highly targeted Youtube ad campaigns in 5 minutes
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.