I'm on an IBR plan. Specifically Pay As You Earn, which gives me by far the lowest monthly payment. My ultimate goal is loan forgiveness, not loan payback, so I am trying to have the lowest monthly payment as possible, as anything I pay in is effectively "wasted" money to me. Because of that, I do as much as I can to reduce my taxable income. I contribute to a 401k, Traditional IRA, and HSA. No Roth for me.
I guess I'm not really giving you advice, just letting you know that yes, there are others out there who A) Make an effort to reduce their taxable income, specifically because B) I want to lower my monthly student loan payment as eventually the remaining balance of my SL's will be forgiven.