Instead of saving your videos in the Photos app with your photos, consider saving them as files in a folder in the Finder. You can place this folder on iCloud Drive, just on your local drive or on a remote drive. You can organize them using file names, subfolders, tags, and comments. You can use the Gallery view to review your videos almost as if they were in a special video management app.
Check out Manage a video library on Mac on YouTube for closed captioning and more options.