If you are interested, I think it can be helpful to consider these per capita PhD feeders lists. Here for example is Bio:
The per capita versions (on the right) help identify at least some of the stronger LACs. I wouldn’t take those rankings too strictly, and of course you may not be interested in a PhD yourself. But at least roughly, if an LAC is doing well in this measure, it likely means it is a reasonably popular area among students, and at least some of those students are getting great research opportunities as undergrads, and so on.
Not coincidentally, Earlham, Allegheny, and Ursinus (along with St Olaf and Mt Holyoke off your list) are all in the top 18 on that list. And then in addition, I confirmed they had popular Neuroscience as well, which you can do through the NCES College Navigator.
Like, here is Earlham:
https://nces.ed.gov/collegenavigator/?q=earlham&s=all&id=150455#programs
Again small school, so only 140 graduating seniors in that report. Of those, 38 had a primary major in Bio of some sort, which is 27% overall. Quite high! 9 were then specifically in Neuroscience, 6.4%, again quite high.
Just to show you another, Allegheny:
https://nces.ed.gov/collegenavigator/?q=allegheny+college&s=all&id=210669#programs
78/369 in Bio of some sort (21%) and 18 in Neuro (4.95). Not quite as high as Earlham, but still quite good.
I added a bit about Knox, and just to give you an idea of why I did not necessarily see Knox in the same category: first, wasn’t on that PhD feeders list, and second:
https://nces.ed.gov/collegenavigator/?q=knox&s=all&id=146427#programs
27/243 in Bio generally, 11.1%, 4 in Neuro, 1.6%. Not that you should automatically strike Knox, this just helps illustrate that these are not necessarily areas of relative strength for Knox in the way they are for Earlham, Allegheny, and so on.
I’m also tossing in information I happen to know for one reason or another about these specific colleges, but that is just sort of random (what I have learned/retained about specific colleges over time).