Ivy League and equivalent schools (Stanford, MIT, …) are reaches or high reaches.
You should definitely find a couple of solid safeties that you know you will get into, you know you can afford, that have good programs in your likely major(s), and that you would be happy to attend. You also need to in general pay attention to your budget.
If you are going to apply to Ivy-level universities, then take some time to figure out which ones are a better fit for you. They are not all the same.