Best bside on each album/mini?

For me:

Ice cream cake: stupid cupid

The red: oh boy

The velvet: light me up

Russian roulette: fool

Rookie: happily ever after

Red summer: mojito

Perfect velvet: attaboy

Summer magic: blue lemonade

Reve festival 1: sunny side up

Reve festival 2: love is the way

Reve festival finale: la rouge

Queendom: better be

Feel my rhythm: beg for me

Bloom: swimming pool

Birthday: zoom

Chill kill: underwater

Cosmic: sunflower

BONUS!! SOLOS

I&S: jelly

Like water: the road

Hello: if only

28 reasons: dead man runnin

Wish you hell: Vermillion

Like a flower: calling me back

Accidentally on purpose: praying

Good luck hahahaha