Welcome. Plenty of knowledge on here. If you don't know the last time the trans fluid was changed then I'd drop the pan, install a trans-go shift kit, change the filter and refill with new fluid. At 120K I'd think about changing the plugs/wires (if they are original), remove and clean the throttle body (the drive by wire ones like to cause issues when they get dirty). Other than that maybe new struts if original, and check the front end for any loose bits (tie-rods, sway links, etc.) Just normal maint stuff.
