I do my own, but most any tire shop will do it too.
Whether you deliver it or pay them for a service call.
I use a little press device to break the bead down and change the
tire while the rim is still on the tractor.
Others lay them flat and hammer them with a mall or a tire hammer.
Press the bead loose with a front end loader/skid steer.
Back over it with a pickup tire, etc.
Various methods but you'll still need a good set of spoons or blunt pry bars.
Then again, as JMOR once said "tire guy's gotta eat too".
Here's the press I use: Lil Buddy