When you are looking at teams, I suggest looking at the size of the team and how long the numbers have been big.
If there aren't a lot of runners on the team then usually there's something going on that chases people who aren't currently in the top 7 away. If there are 15-25 men or women (not combined) on the team who are committed to doing the workouts and sticking with it, that's evidence that there is a positive culture on the team. (Note: those are d3 numbers, roster limits & "counters" do weird things to D1 numbers)
Running in college is hard. There's no off season and there are a lot of things that are going to compete for your time and focus. Having a support network is a big deal. If the team isn't drawing a lot of people, then that's a sign that it may not be healthy. If there are negative forces on the team, it can be hard to stick with it. On the other hand, if the team is big, friendly, and supporting then it becomes a positive force and makes it easier to balance training and studies.
Rule of thumb: you've got your studies, your training, and your social life. You can pick two. It helps a lot when the team can provide two in one.
Last thought: there are a lot of elite runners who stop running in college because it stops being rewarding. My advice is to find an environment where running will be the most rewarding, because you'll never find out how far you can go if running stops being rewarding.