<p>For small classes, you can check class sizes and enrollment limits in the on-line class schedules of various schools. Be aware that majoring in biology is popular at many schools, as is doing pre-med (majoring in biology is not required to do pre-med, but there is substantial course overlap; about half of applicants to medical schools majored in biology), so that the typical biology and chemistry courses for biology majors and pre-med are often among the largest classes for any given school.</p>
<p>As far as small classes versus course selection is concerned, small LACs with cross registration agreements with conveniently large research universities may allow you to have small classes at the frosh/soph level, but have more course selection at the junior/senior level. But you can check on-line catalogs and schedules to see what offerings are available at each school.</p>
<p>Less selective schools without PhD students (= TAs which allow faculty to hold large lectures by having the TAs run discussions and labs) and community colleges also often have small frosh/soph classes, although medical schools may frown on taking pre-med courses at community colleges.</p>
<p>Remember that pre-meds need to pay attention to avoiding undergraduate debt, due to the high cost of medical school.</p>