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I’ve got a set of these for when my puney grip gives up, might be worth a shot.
https://rdxsports.co.uk/products/w5-larus-weight-lifing-hook-straps?_pos=2&_sid=37ff27611&_ss=r -
All i can suggest is using the ankle straps for a cable machine around your wrists and doing that for upper body stuff. Alternatively any machine work you can do without impacting your finger. E.g. if you can get it loaded you could hack squat, leg press, hack squat good morning, leg ext and hamstring ext without and finger involvement.
Any suggestions for stuff I can do whilst on the sidelines with a broken finger? Guess I'm mostly resigned to lower leg stuff but would love to get my glutes in a better condition