>>2830067I'm not particularly interested in different models, but, excluding my non-public wife, 先代巫女 (Previous Generation Hakurei Miko, a.k.a. "Reimu's mom") is an old Montecore-style model, but she qualifies (speaking of Touhous, Yuugi Hoshiguma models might come with that, too).
TBOMB200 might have some, although I only cared for his motions. Quappa-EL might have some, too, judging purely by the faces. Mash Kyrielight_201 from RJ248321 has some very, very basic definition. かこみき's AB bodies are known for having a bunch of adjustment morphs, they might have one corresponding to muscle definition, but it's not present in ab8b_170131 or AB10_200626_1. The HK base might or might not have some pretty unique muscle features, particularly that one muscle going from the crotch along the inner thigh which can protrude with legs spread, I need to copy that.