Youtube Video SEO

First, you need to make an excellent short video (length is around 2-3min), probably you will put business related photos, videos, then engage with happy, brisk, bright song or music.

Second, posting your video with proper title like this way:  your main keywords + city name, state

Third, in Youtube description, you will put same title name first, and your website URL address  and 10-20 related keywords list from Google keywords planner
In tag section, put comma between all words for example:

Website Web design building SEO in San Rafael Mill Valley Sausalito CA

Youtube Video Web Design building & SEO in San Francisco CA USA | Youtube Video SEO | How to promote your business in Youtube video?

Web Design & SEO in Oakland CA USA
Web Design & SEO in Richmond CA USA

Nothern California Silicon Valley City Name with targeted keywords.