I have three (each for different things). Here are the video names and who created them so you can check the out. I think they are all really good though.
-Not Like The Movies CMV (Lily/James . Sirius/Remus) by UnitedWeCosplay --- For Marauder Era
-In loving memory of those who died in Harry Potter by alwayspureblood --- For those who died
-Harry Potter | The War by agntofCHAOS13x