Brainstorm ideas: Create a list of keywords that may be related to your video content. Think about synonyms, variations, and related terms. Use YouTube's autocomplete feature. Start by typing your main topic or related keywords into YouTube's search bar. Pay attention to the auto-suggested keywords that appear. These suggestions are based on common search queries.

Check related searches: Scroll down the search results page to find a list of related searches. These may provide additional keyword ideas. 

Use YouTube's search filters: Use YouTube's search filters to find popular videos in your field. Analyze the titles, descriptions, and tags of these videos to identify keywords that may be related to your content. 

Use keyword research tools: Use keyword research tools like Google Keyword Planner, SEMrush, and Ahrefs. These tools provide insight into search volume, competition, and related keywords. 

Analyze your competitors' videos: Watch videos of competitors or his YouTubers in your field of expertise. Examine the title, description, and tags to identify keywords that seem effective. 

Consider long-tail keywords: Long-tail keywords are more specific phrases and may have less competition. It may be worth it if you're targeting a niche audience. For example, instead of "travel tips," you might consider "cheap travel tips for solo backpackers."

Add location-specific keywords: If your video is in a specific location, include relevant location-based keywords to attract local viewers. 

Use Google Trends: Check Google Trends to see the popularity of certain keywords over time. This allows you to see if a keyword is currently trending or declining in popularity. 

Create an attractive title: Once you've identified your keywords, create an attractive, clickable title that includes those keywords. Make sure it accurately reflects the content of your video. 

Optimize your video description and tags. 

Write a detailed video description that naturally includes your target keywords. Further, optimize your videos for search with relevant tags. Keep in mind that SEO is an ongoing process, and you may need to adjust your keyword strategy based on your video's performance or changes in search trends over time. Analyze your video analytics regularly to understand what's working and adjust your approach accordingly.