When I was a boy we had a gardener who came once a year to dig over our vegetable patch.
Percy was his name and I can still remember the cyclamen growing outside his kitchen window in his house called Dog Cottage.
He arrived with a big fork and just go on with it. Our fork is a “get on with it fork” enabling you to fork quickly over kitchen gardens. Again this is serious fork you can put your back into.
However, like all forks be careful not to put too much leverage into your dig. A a rule if something wont’ move don’t force it, take the fork out and approach the obstacle with a spade first.