There are several factors that can influence the ranking of a video on YouTube:

• Title and description: Make sure your title and description accurately reflect the content of your video and include relevant keywords.
• Thumbnail: Choose a thumbnail that is visually appealing and represents the content of your video.
• Length of the video: Longer videos tend to rank better, but only if they are engaging and provide value to the viewer.
• Audience retention: YouTube favors videos that keep viewers watching for longer periods of time, so it's important to create engaging content that keeps people interested.
• Number of views: The more views a video has, the more likely it is to rank well.
• Number of likes and comments: Engaging with your audience by encouraging likes and comments can help boost your video's ranking.
• Number of subscribers: YouTube may also take into account the number of subscribers a channel has when ranking videos.
• Use of relevant keywords: Using relevant keywords in your title, description, and tags can help your video rank for those terms.
• Quality of the video: YouTube favors videos with high production value and good sound and picture quality.
• Consistency: Regularly uploading high-quality videos on a consistent schedule can help boost your channel's ranking and visibility.

By following these tips, you can improve the ranking of your videos on YouTube and reach a wider audience.

I highly recommend TubeBuddy to help you out with optimizing your videos for YouTube. It has a nifty tool called SEO Studio that really helps with your title, description, tags, and thumbnails. I like it a lot.