what kind of toys are good for beagle pups?

i have a 10 week old beagle, and he has some toys he likes. He plays with all his toys and a pair of old shoes he plays with for hours a day. My husband and i play with him at least 8/10 hours a day and he sleeps with us at night. We even go for 3 walks a day, but this still doesn’t keep him content. I thought about getting another beagle, but i can’t have another one. Anyone have any suggestions about some good toys? I have him in a beagle rabbit club, where he is learning to hunt rabbits slowly.