Anything wrestling/lycra (like Can-Am, Zeus or Bricklayer)
Bodybuilder bareback
Heavy ass play muscle/hairy (not especially fisting, more toys)
Country/redneck muscle guys
Hairy muscle guys bareback and gangbang (BMR, etc)
Muscle double penetration (preferably bareback)
Inter-racial muscle (preferably hairy guys and bareback)
Big muscle bulls bareback

Thanks for the suggestions!