Tons of variations....
Trouble is are people willing to ACTUALLY try them.....
Back Squats
Front Squats
Overhead Squats
Hack Squats (Machine & Barbell)
Sissy Squats (Couple of variations here)
Jefferson Squats (sometimes called deadlifts)
Zercher Squats
Etc etc etc can`t be bothered writting them all.......
Why not just look here
http://www.uk-muscle.co.uk/advanced-...ime-lifts.html and you will see tons of different lifts me and a couple of others brought to peoples attention....
Or buy Bill Pearls *keys to the inner universe* which has over 600 different exercises in it....