YouTube systems are influenced by a viewer’s watch history, a video’s performance & engagement metrics, and external factors that ultimately try to help viewers reach you. We recommend Focus on what your audience likes. If you do that and people watch, the recommendations will follow. Ask yourself, which videos does your audience enjoy most?

https://support.google.com/youtube/answer/11914225?hl=en&co=YOUTUBE._YTVideoType%3Dvideo