stuffing out, like a wild dog or wolf would do to its prey and food. It’s ideal enrichment for them but unfortunately not ideal for you having to keep buying toys. 😉
I’d try toys like people are saying...Kong or tough solid rubber toys that aren’t any fun to rip apart. But I’d still occasionally get him a cheap toy he can rip up since it’s great fun for a dog. Or you can use cardboard tubes or thin pieces of cardboard that he can rip up, as long as he’s supervised so he doesn’t actually eat it.