A lora trained on about 1000 images of women with varying degrees of muscularity, with the goal of making a lora for realistic looking muscles. The lora was trained on the base pony model, but works well with other models too.

The Lora recognises keywords "fit,toned,muscular,bodybuilder,bulky,lean" So you can play around with various builds. I do reccomend combining it with other more stable models, since on it's own it can be a bit unstable.