I'm in love with Red Velvet's Bad Boy outfits, they are by far my favourite kpop outfits.
These outfits would be good for a girl crush concept.
Also these, with Seulgi's iconic red pants.
Snsd's outfits for You Think
Then, Twice's iconic outfits for Fancy
And for simpler looking outfits, I think Loona OEC and yyxy would be good example.
I'm sooooo excited for your mod, keep up the good work and most importantly, take all the time you need :)))