Best keyword search tool for youtube?

Anyone can suggest me something good? Don't need to be cheap, need to be precise if possible..

The best place to look for keywords is on YouTube, but you should also use more traditional keyword research tools (like Google Search Console, SEMrush, SEOProfiler, Moz or others.) YouTube allows you to include “tags” to help categorize your video by keyword, but it limits the number of tags you can include.

KWfinder is one of the tools that is made only for keyword research and thus its one of the best.

Try Google keyword planner