As Daisy said, it’s finding your rabbit’s preference. Toys are human-created items, not things rabbits naturally go to, though we try out best to use rabbit-enticing materials, like Willow.
Wick has no interest in chewing, so I have no advice for what toys to chew. We’ve tried soaking wood sticks in fruit juice and that still didn’t work, so we’re satisfied that we won’t need to continuously buy chew toys.
We do get him general stimulation toys, as a way to keep him on his toes and troubleshoot issues. We have baby -stacking cups-, that we put his pellets and treats in, and he needs to knock them down or pull them out of each other to get to the food. We also have a -windmill- dog toy that he recently figured out he needs to spin the arms in order to get the food to fall out! There’s also the classic treat ball, made from a toilet paper tube: http://www.instagram.com/p/BiHosnDAwMo/?taken-by=wick_theboogeyman
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.