Nathan,
What type of rental are you looking at? That "surplus" of rental options" you mention tends to vary greatly, depending on type, size, location, amenities, and more. My own rentals are single-family pet-friendly homes with all appliances in established Fayetteville neighborhoods. At the moment, there are only two other rentals available in all those neighborhoods combined, and the rents of those available rentals are definitely not discounted. I'll note that rentals in these neighborhoods rarely stay on the market for long, even during Covid.
I don't discount rents and always have a good pool of qualified applicants who are not students.
If you're tracking local rentals via Zillow and using Rentometer to analyze rentals similar to your own, you should get a good idea of what's moving and what's not. You can also track rental rate history via Zillow.
Are you specifically looking for students as tenants? If so, you might want to check other properties that are the same as/similar to yours.
Good luck!