Tags don't make a big difference anymore. Don't bother. I use tubebuddy free to see what other "competitors" are using. When you have the extension installed and watch a video it shows what tags they use. You can use that to learn, but otherwise just write some relevant tags yourself. Tags are mostly used to cover typos and maybe some keywords that are not present in the title or description. My advice, but take it with a grain of salt, is to focus more on titles and descriptions. For shorts even these are less relevant. I've seen shorts-focused channels that use titles like "HAHA" or "LOL" with lots of emojis, no description, no tags, and still have hundreds of MILLIONS of views. So I don't know what to think anymore. Answer from Food-Fly on reddit.com