For me, I usually watch the artists' MV's for their comebacks or debut songs and if I vibe with it, I immediately become their fan. Yes, I'm that easy.
But, currently, since there are SO MANY girl groups in the 4th generation, I had to stop at some point.
The MV's I've watched, but, have not been a fan the groups were ~
LIGHTSUM - Vanilla and Vavice
NMIXX ~ O.O [ The music was so confusing because it seems like they were doing multiple types in one song. ]
Dreamcatcher ~ I forgot what MV since it was a long while ago.
Itzy ~ Again, I forgot which MV's I've seen. I think I saw 2 of them.