I'm in a similar situation. I have student loans still (went to a very expensive private school for college) but also have some capital to invest in real estate. My interest rate is pretty low for my student loans. I've done the avalanche method to pay off some student loans because overall it's just good for your mental psyche to get rid of the baggage of the student loans.
Currently, I'm saving up for a down payment while also paying a bit extra on each student loan. Just like with rental properties, you just have to run the numbers and figure out how much money extra you're paying over the years. There are so many loan calculators online and also, you should probably have a 1098-E showing you a ballpark of how much interest you're probably going to pay this year if you want to just estimate it.
Finally, another benefit of maintaining a loan that no one really talks about. It actually helps your credit score because each month you pay your loan, it increases the average age of your credit history. I'd gladly pay a few extra bucks a month in interest to keep my credit score steadily increasing.