If i want to go into the medical field what are good colleges to look into

To be honest definitely explore your options of colleges you may like to attend, however I believe you cannot REALLY go wrong in choosing one college over another. It will make a difference which profession within the medical field you choose, but for the most part post-grad professions require an entrance exam and specific requirements. I believe it is perhaps more important to take the required courses, attain high marks, study lots to do well on the entrance exam (if there is one) and volunteer lots.
Just an idea to play around with..you may not want to complete your undergraduate degree at THEE HARDEST college that exists because it will be more difficult to attain higher grades.
Considering that you are a sophomore I do not think that worrying about what college you attend for your post-graduate degree is all that important at the moment.

I have many friends who applied to medical school and where they applied took into account many different factors. Generally colleges aren't all that horrible. Of course there is the Ivey League colleges. Anyway my friends applied to colleges depending on whether the cost of living, the distance from home, the cost of attending the college etc. Sometimes programs are so competitive you do not want to decrease your chances of getting into a college for your field of interest by limiting the colleges that you apply to.

Of course it is worthwhile doing some research.
Especially for programs for which not many colleges exist for.
An example of this would be pharmacy.
In Canada there are only about a handful of pharmacy schools.
If you attend undergrad at the one college and then get accepted to their pharmacy program after your 2nd year of college you will graduate with 2 degrees. Both a general medical science and one pertaining to pharmacy, even though the science degree was not technically completed.

Don't rush! Before you start picking colleges, first explore the medical field to hone in on the right sub-field. It may seem like you should wait, but resist the urge to wait. At least you'll need to figure out if you want to be a doctor, nurse, researcher, administrator, or something else. Each of those sectors are going to have a huge impact on what kind of school you go to (respectively: college + medical school, nursing school, business major in college).