all groups i know (by "know" i mean i know all the members in the group)

• 100%
• 15&
• 2ne1
• 4minute
• akmu
• aoa
• apink
• astro
• bigbang
• blackpink
• boyfriend
• brave girls
• bts
• clc
• cosmic girls
• day6
• dia
• exid
• exo
• f(x)
• gfriend
• girl's day
• girls generation
• golden child
• got7
• gugudan
• ikon
• infinite
• ioi
• jbj
• kard
• loona
• lovelyz
• mamamoo
• miss a
• momoland
• monsta x
• nct 127
• nct dream
• nct u
• nu'est
• pentagon
• playback
• pristin
• red velvet
• seventeen
• sf9
• shinee
• sistar
• speed
• super junior
• teen top
• tvxq
• twice
• up10tion
• vixx
• wanna one
• weki meki
• winner
• wonder girls