Tubics - SEO & analysis for YouTube videos
Adzoola - The only Google and YouTube targeting discovery tool built to increase your ROAS, decrease your CPA and help you scale profitably.
VidIQ - Generate tags for YouTueb Videos. Works as a browser extension .
Vid Hoarder - Find the perfect YouTube Ad placements in just a few clicks
Biteplay - Create highly targeted Youtube ad campaigns in 5 minutes
TuBeast - Web platform/extension which contains advanced tools that will help you optimize your channel and videos to perfection, create relevant niche-targeted content, conduct unfair market research, learn amazing insights about your channel and more.