my favourite opening are
Ahy My goddess season 2 opening
Bleach opening 2, 3, 4, 5 & 7
buso renkin opening
chrono crusade opening
D.Gray-man opening 3
Digimon Adventure opening
Digimon tamers opening
Digimon Saver opening 1 & 2
Flame of recca opening
Kannazuki no miko opening
Love Hina opening
Naruto opening 2, 4, 6, 7, 8 & 9
Naruto Shippuden opening 1 & 2
Negiam opening
One Piece Opening 2, 3, 4, 5, 6 & 8
Shaman king opening 1 & 2
i'll add more as i remember