Games to play with pup other than fetch and tug of war

Hello! I have a 23 week old frenchie and he’s just the best! We do a lot of sniff and snuffle things and he loves tug of war but I’m wondering if anyone has any other games we can play with him. He doesn’t have any other pupper friends and I want to engage with him as much as possible. He doesn’t really like fetch. Any ideas would be appreciated!