To just deprime without resizing, you’ll want to get a Universal Depriming die for your press. Those essentially are straight walled dies with a depriming pin. Every press manufacturer makes one (Lee, Hornady, RCBS, Dillon). Frankford Arsenal even makes a handheld deprimer that does not require a press.
I use a Lee Universal in my Hornady Lock n Load press, mostly because the Lee decapper is much cheaper and it is all I need it to do. For me, decapping is the first step in my process before sending the brass through the wet tumbler. Though one thing I did learn about the Lee depriming pins, are they don’t seem to be heat treated or hardened. I bent one recently on a steel case that I missed when I was sorting brass.