Animation that is extremely classic to me because it was the first one I watched when getting into Homestuck is “Gamzee: Fondly regard rainbow“ it is really cute!

https://youtu.be/piaQUbYZOD4

I also recommend Randy’s animations they’re EXTREMELY classic to me despite how less popular they are, it’s better viewed chronologically but if you’re going to watch One “grubsitting!!!” is my fav, quotes from it won’t leave my brain, also Karkat’s face at 1:47

makes me cry

https://youtu.be/E3cPHUuiKfw