Jordan fore and foremost, the 90's were spectacular and Jordan for me was inspirational, it was fun, fierce and you gotta love their liveries.
other than that I missed Brabham team, basically brabham throughout all its history has produced impressive cars such as the Eagle, the BT42-45 variations, the BT55 fan car, BT52 dart car. all manancing machines with huge success.
other small teams are to missed to, Osella, Life, Ligier, Leyton House etc etc.