I asked a similar question in the past. Tones and other users shared their worthy suggestions. You can read them here
Personally I would solve this problem this way
youtube-title (you can use bar and other special charactersyoutube-urlNext I would use templates to display this information in every tiddler. If I have to search then I would use list field to search in the youtube-title field.
Here you can see, I use template to display my source-url field

Some of YouTube Videos currently using "Vertical Bars" (|) in their titles (ex. https://www.youtube.com/watch?v=p-MNSLsjjdo).And as we all know, that character is reserved within TW5, So, What is the best way to work with such "piece of information"? For Example: If I created a Tiddler with that Title, How do I make a link to it?