There's some morphs for "bodybuilder" type M4 characters available at the stores that specialize in hunky males. Not quite as shredded as Mr. Hyde, but with a more corded look than the M4 muscles pack.

And there's this:

https://www.renderosity.com/mod/freestuff/?item_id=64687

It's a body morph, a texture and a face morph (requires Morphs+).

There's also stuff out there for Apollo and Freak 3 if you have those figures.