Most good colleges will provide more than adequate prep for med school and med schools don’t care which undergrad institution you attend. It’s about grades, test scores, and for state med schools, your state of residence. Just make sure you complete the pre-reqs - any decent school will have pre-med advising which can tell you what those are. Just don’t go into debt.
LACs are particularly good for pre-meds who find large schools overwhelming. The smaller classes and close faculty relationships reduce the sharp elbows phenomenon and give you a better shot at a great committee letter. You can do research anywhere. Ditto medical-related volunteering.
Which LACs? The midwestern LACs are generally less preppy than the NE and southern ones. There are LACs that are more artsy, granola, alternative/hipster, or intellectual. They can be urban, suburban or rural. Some offer merit aid. It all depends on what kind of environment brings out the best in you - also known as ‘fit.’