hands free front squats, leg press, hyperextensions,
crunches of all forms, zercher squats (so long as you don't grab your hands), leg raises (
including side for the glute min / med), some
cable awkward
cable work could be done so long as you «grip» the
cable in the crook of your elbow (front / lateral raises, pec fly, reverse fly maybe), calf raises, planks, there's more but they start getting finicky after this lot