When it comes to new hides, if you have trouble finding something appropriate, it's easy to DIY hides out of plastic food storage containers. I find black plastic containers at Walmart, turn em upside down, and cut a hole in the side for the snake to enter through. You want to make sure it's made of black plastic instead of clear so the snake feels secure. They work like a charm and come in plenty of sizes so you can usually find some the perfect size for your snake and can size up easily as they grow. I think I paid something like three dollars for my snake's current hides, and they work perfectly if you can't find any good hides at your local pet stores or don't want to pay a lot for a hide they'll outgrow anyway.