Add a little bit of B love here XD:
B3- Tenshi no Shippo
B3- Pajama Drive
I haven't listened to the full singles of their older material but going by the past three years, their B-sides typically aren't really that good (it's a different story for the rest of the xx48 family though). The only ones I've really LOVED are:
Team B Shonichi (Namida Surprise!)
Namida no See-saw Game (Heavy Rotation)
Lucky Seven (Heavy Rotation)
Team A Kuromi to Dialogue (Chance no Juuban)
Team K ALIVE (Chance no Juuban)
Team B Love Jump! (Chance no Juuban)
I'd also suggest checking out the sub-units and soloists as I'm a person that tends to like those more than the flagship group (it's the same for me with Morning Musume and H!P) so you might find some gems there.
