I am missing plenty, bring on the suggestions!
  1. Green Day - Insomniac
    Dookie is a perfect album, but so is this one. It has a kind of manic energy even in it's slower songs (ie Brain Stew and to a lesser extent, Stuart and the Ave). I understand how following up such an influential would be hard. This was still a big seller, but rarely get brought up these days.
  2. Blink 182 - Take Off Your Pants and Jacket
    Personally, this is my favorite Blink album. Dude Ranch and Enema of the State are so fucking good! This was a huge album, but it gets mistaken for being more serviceable and jokey. But there's a lot of emo to go with the goofs.
  3. Lil' Kim - La Bella Mafia
    This did well when it came out, but it didn't stick with people. I don't know why, this is probably her most lyrically charged since Hardcore, but also the guest appearances are unreal.
  4. Jimmy Eat World - Bleed American
    Any track that isn't on the radio is just as good as any track that's on the radio. Perfect album that most people remember cause of The Middle.
  5. The Ataris - So Long Astoria
    This mostly got traction from their "Boys of Summer." Prior to this, they had already done many-a-indy releases.
  6. Frank Ocean - NostalgiaULTRA
    This is kind of cheating, since it's technically a mix he put out for free after a label dispute. If you hear this, it'll make you realize that Channel Orange is a sophomore album, but certainly not a slump.
  7. The Weeknd - Trilogy
    The Weeknd has begun a new phase and a new album, but people seem to have forgotten his game changing, mysterious beginnings. Thursday, the middle album, felt underrated of the bunch, but all 3 are great!