How long is she crated in a 24-hour period? Is it for housebreaking or something else?
Personally, I’d not encourage cardboard destruction - that’s for birds, not dogs. One day she may eat it.
Be very careful about bones. According to the vet I’m very lucky my girl has no broken or worn teeth due to chews.
I didn’t know & eventually went through then discarded beef rib bones (she used to just clean them, then one day started chomping), stuffed bones, meaty bones, yak cheese chews, dental chews (she’ll vomit pieces up days later - I don’t trust their digestibility), elk antlers, deer antlers (thank God she never liked antlers), no hides (almost choked to death on pieces of these more than once), etc.
She’s under 15 lbs, so your job will be tough! I let her have a bully stick every so often under supervision - these are high in protein & some dogs can bite off pieces & choke. I’ve found stuffed kongs to be safest for mine. She’s never left alone with any chew.
Look into private, rentable dog parks like on Sniff Spot. Read the reviews! I’ve seen some unsafe ones. There are also other private dog parks & indoor gyms where I am.
Don’t resort to a random dog park. They’re terrible places filled with ignorant, arrogant people & their aggressive or outright vicious dogs, many of which are breeds bred for inherited territoriality or inherited drive to fight other dogs. You don’t need your puppy killed or attacked so she becomes dog reactive.
