for me:
stray kids: I got to know them through district 9, but i became a stan when my pace came out
nct: nct 2018, i got to know each unit with songs like regular, boom, and then the debut of wayv
txt: crown, i love the song and stanned them right after they debut
itzy: dalla dalla, i also stanned them right after they debut.
aespa: i was intrigued with aespa's concept and began stanning them a few days after black mamba came out
gidle: latata was like a gift from god because it seemed like these girls were meant for me. I've been stanning them since i first heard latata a few days after their debut.
ive: eleven was so good i immediately ulted them lol