I can confess to also stuggle to find 'safe ' chews i wont touch rawhide and tried Paddywack till I saw the massive pieces passed through in the pups droppings .
My guys chew and 'eat' everything ,cardboard,paper anything they get hold of recently they tried sequins and buttons .
I too would love to know what is out there, even toys are destroyed and 'eaten' I guess walking and tiring is the only answer.
I am wondering how to keep their teeth clean!