I picked up my 2021 XLT FX4 in January as a Ford Certified Preowned and have been super happy. I, too, wanted to upgrade my wheels and tires but did not want any "poke". Here's what I picked out.
Leveling Kit: ReadyLift 2"
Wheels: Method 703, 17x8.5, +25 offset
Tires: BFGoodrich KO3 285/75r17 (34's)