I had a hard time genning the girls in idol outfits in a model with no hll mixed-in.
There should be four Loras up, each pre-fes4 and bright version's epoch seven and eight.
Usage
Pre-Fes4 (Original)
use prompt: hololive_idol_outfit, mismatched_legwear, kneehighs
weight: 0.2-0.6
variety prompt:
Type 1; white_vest or vest, bowtie
Type 2; halter_shirt, sideboob, armlet [this type is a bit lacking]
Type 3; corset or bodice, frilled_straps, cleavage
DB ref: https://danbooru.donmai.us/posts?tags=hololive_idol_uniform+&z=5
Bright (newest as of "Our Bright Parade")
use prompt: hololive_idol_outfit_bright, mismatched_legwear, kneehighs
weight: 0.2-0.6
variety prompt:
Type 1; skirt [no need for extra prompt really]
Type 2; shorts
DB ref: https://danbooru.donmai.us/wiki_pages/hololive_idol_uniform_%28bright%29
Notes on Epoch
For both, epoch 8 trades-off accuracy for base model style (based on my test), use epoch 7 if you don't want it too intense.