I've been away from kpop for a minute, so I can't comment on New Jeans although it seems they're highly influential.
H.O.T. - every kpop fan more or less has heard of Candy
TVXQ - revived 2nd gen market
SNSD - Nation's girl's group who caused influx of GG's with large amount of members
BIGBANG - Huge relevance in Korea after 10 years.
BTS - Biggest kpop group worldwide
BLACKPINK - Biggest kpop GG worldwide