I have a max storm, and when I was at your level, I had a storm ghulture with triple damage, double critical talents with maycast unicorn. It really helped me solo through the worlds by providing lots of power and a little heal when I needed it. Storm ghulture and rain core are very plentiful in the kiosk so it's easy to find the exact pet you want and level it up. These two pets also have very useful cards that you can use in your deck. Good luck!
wizard, and I am lost on good pets to get at my current level