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It's not really related to the thread so I won't link it but if you don't know about it, look up "v the musical over nine thousand" on Youtube, it's quite recent but it's got plenty of 2000s memes, very fun song for people who love old memes and 4chan culture.
You can also look up /a/ draws daicon iv, very soulful, it has more recent things but it also got some old like longcat and hare hare yukai.