Warm Greetings,
I'm a professional YouTube SEO expert having years of experience. I'll do followings for your channel and content for better rankings.
1. Title Of The Video – Use Keywords
2. Description Of The Video
3. Naming Your Video File
4. Optimizing existing videos using search data
5. Use The Closed Caption (CC) Feature In Your Video On YouTube.
And many more Seo factors will be applied.
Also, I use premium softwares like ahref & semrush for keyword research.