If you want to do best youtube video SEO to rank your videos, You should optimize your videos in the right way. If you can’t, you have to hire an SEO EXPERT. I use the Best youtube Video Seo strategies which will help you get organic views and ranking. I will do YT Keyword Research for your videos as well as your channel.
This service will help you to get more views and subscribers organically on your channel.
To be honest, it depends on your content and optimization. when people search for a video that is related to your video then youtube will suggest your video on the youtube page and people will see your video, And day by day your rank will improve.