Grad classes

Hello there!
I am a Junior at Randolph-Macon College in VA, and I was just wondering what suggestions anyone may have for classes to take in between graduating my current school and applying for vet school.
I will likely only graduate with a 3.0ish GPA (B.S. Bio major and Chem minor), so I plan on taking off a year or two after I graduate to try and strenthen my academics a bit, and gain more experiance. I’ve had a ton of animal experience throughout my life, have been working with vet for about 7 months now, and have an internship at a different clinic during our January term, so I already will have quite a bit of experience by the time I graduate. I will also use my time off to study hard for the GRE to try and get a really good score.
I will probably enroll in Purdue’s Animal Nutrition class while I’m still in undergrad, but what other online classes are there that I could take? And does anyone know of any programs or in-person courses in VA that would be beneficial for me to take?
I know I don’t really have to worry about any of that for another year and a half or so, but I’m a planner lol.