Mine like Benebones, and I don't get "shards" breaking off them.
I also do a lot of Kongs - I stuff them with huge varieties of things, then freeze them so it takes them a long time to work through them. Mine also love the rubber Chuck it balls. I buy the ones that are just a size up from the tennis ball size. They love to carry them around and will sometimes chew on them like they are gum
Richter is a super destructive chewer, so I can't give him any soft toy, and he's chewed through quite a few "chew proof" toys. We've tried some of the "indestructible" chew toys, but some of them he just isn't interested in chewing on, so you have to figure out what appeals to your dog that is also reasonably safe to chew on. There's a risk with nearly every "hard" chew toy (antlers, nylon chew toys, bones), but dogs DO need to chew, so you have to just make the call of what you're comfortable with. My dogs get a raw knuckle bone on occasion, I just limit how long they are allowed to chew them in one sitting. I don't do antlers, because they don't really like them so they won't chew on them. I won't do marrow bones, because for me, the risk of tooth fracture is too high (the long bones of an animal are much harder than the knuckle bone, which is cartilege). The Benebones are definitely hard, and it's a risk, but both of mine LOVE them and it gives them a good chewing outlet.
I did try the Goughnut, which is for hardcore chewers, but Richter was uninterested. He chewed through several Westpaw products, so those don't work for us, but I know lots of dogs that can have them. The Hurley in particular seems to work well.
I've also heard decent things about both the BarkBox Super Chewer subscription and the Bullymake Subscription box - those might be options to try for a couple of months to see if you can find some toys that work.