Like the queen said, most people who don’t eat kitniyos, don’t use canola oil on Pesach.
You have a lot of choices. They all offer different Halachic, nutritional, and cooking challenges. Walnut oil (as mentioned), cottonseed oil (ditto), olive oil, safflower oil, avocado oil, grapeseed oil. Check out your local grocery; you’ll be surprised what you can find in the Pesach aisle. If you don’t live too far OOT, that is.