If you’re premed, you want to attend a college where you’ll be among the top 25% students (both for course rigor and test scores) and certainly above the middle 50%.
If your goal is ACT30 - and, with your current score, it’s a realistic goal, I commend you for that- , you probably shouldn’t attend Emory or UMiami, unless you’re not sure you want to become a doctor. (UNC OOS is impossible if you’re not an athlete, a legacy, or an Ivy-contender).
With a rigorous curriculum and ACT30* , you"d have a shot at universities like Eckerd, which has a strong biology program and would likely offer some financial + merit aid, St Olaf and Dickinson would be matches (both offer superb premed preparation), etc. Start exploring a bit 
- time to get a Fiske Guide, Princeton Review’s Best Colleges, or Insider’s Guide to the Colleges, and start reading!
- unless you attend a school where the average is 17 or 18, in which case your achievement would be duly recognized and would make you eligible for a lot of colleges.