Rank Youtube SEO 2022

Hello All ,

Currently i have 1000 video of 1H video about relax and rain music .. i want to know what are the latest update about youtube SEO and how i can optimize the SEO and what i should do excatly ( Tags , hashtags , spy on others channels .. )

Thanks

UP

Guys, I have same query.
I am working on channel and putting up some quality content. Looking for inputs to rank a video.