>>2862015>>2862044Alicia Solid Kai (アリシア・ソリッド改) by YY_works has the best ones I know of due to autistic anatomy replication, lifting the corresponding pec (breast) with both the shoulder and arm bones. The catch is that copying the bone structure limits your upper arm anatomy to SDEF if you have an elbow texture and care about its true orientation. (I was unable to find another solution to properly transition between the anatomy bone set and regular arm bones.)
Tarara Tarako's models also have decent armpits. Izumi Shimizu has alright ones. Surprisingly, a crude one like Usagi from above has decent shoulder weights as well. And yeah, QuappaEL's ones are on par with TararaTarako's.
