A good way to find rock covers of songs?

As of recent I've been finding that personally, I like a lot of popular songs redone by alternative bands WAY better than original versions. (Hot And Cold by Friends For Hire, Just Dance by Disco Curtis, Love In This Club by The Summer Set) Is there a way I can find a list of these? I always just stumble upon some, but I want a better way to find them, especially when I'm looking for a specific song.