Gumdrop looks like a handsome little man already!
Unfortunately, bunnies can be a ball of terror, especially at the age you’ve got here in Gumdrop. You have an angsty teenage bun on your hands. I know that neutering can be expensive, and sometimes the travel costs to a nearest vet that’s 100 miles away can seem like it isn’t worth it, but I would recommend getting him neutered. Males especially, since he may start spraying on anything and everything fairly soon. Besides the spraying, his naughty behavior will mellow out with a spay.
Ultimately, the choice is up to you for a neuter, though. Cons are money, recovery can be scary with some buns, and finding a vet that actually does rabbit surgery instead of a regular vet who says they do for the sake of getting money (it happened to me). Pros are: he’s less naughty, not peeing on everything you love, and male bunnies become much more cuddly when they’re neutered, too.
Some bunnies have no interest in toys and it’s ANNOYING for us humans! I assume you’re getting him woodchew blocks? Because I know my bunny won’t even bother touching those. I’ve had good luck with untreated, new-growth apple tree branches (they’re springy and “fresh” looking) and willow baskets, balls, etc. Even just weaving together your own basket (over and under and over and under) with some hay woven into it to make it smell tasty and fun could work for him. Luckily, my Meki has a wooden hutch she stays in at night…. but the frame of it is chewed all to heck. Leave a bunny with wooden furniture, and it becomes the best thing in the world. I don’t know of any brands off the top of my head, but they sell some icky-flavored stuff to spray on your furniture so bunnies won’t want to chew it.
Good luck with your new bunny!