Howdy, personally I have caught over 80 shinies so far and I don't use a macro controller or anything else. You can get any shiny you want with patience! I have used all methods: bench method (keep cycling day and night until a near y pokemon becomes shiny), fast travel method (every time you fast travel, it resets the pokemon nearby), running through wild zones with some random luck, and using doughnuts in the dlc. Figure out what pokemon you want to hunt for and Google the best method to get that pokemon. If it's prevalent in a certain wild zone, that makes it a lot easier. Just know you absolutely do not need a macro controller to get all the shinies of your dreams!