30,000 mile review of Cooper Discoverer STT Pro tires

My Cooper Discoverer STT Pro tires now have 31,011 miles and 6 winters on them. They have wear but are still working well. But the spring of 2022 means a new set of tires will be needed. I am looking at either a fresh set of these same tires:
https://coopertire.com/en-us/find-tires/all-tires/discoverer-stt-pro
OR:
https://www.bfgoodrichtires.com/auto/tires/all-terrain-t-a-ko2
https://www.nittotire.com/light-truck-tires/trail-grappler-mud-terrain-light-truck-tire/