if you are bagged, you need to be sure to get wheels identical in overall diameter to what you have now, because the suspension is made to droop a fixed and specific amount. smaller diameter wheels will result in overinflating the airbags ("losing lift") and larger diameter wheels will result in the truck not delating enough ("losing drop"). both are bad, losing lift will result in a poor ride and losing drop will put stress on shocks because they will typically bottom out, and the shocks and shock mounts are not made to carry the weight of the truck
measure the diameter of your wheels or even better use a calculator
https://tiresize.com/calculator/ and enter the numbers off the sidewall and calculate the diameter. then you can use the comparison tab to enter 18 20 22 24 tire sizes and find one that is the same diameter.
for width, the best thing about a bagged s10 swap is how much room you have in the fenderwells. where does your truck sit when it is aired out? flat on the ground? just off the ground? way off the ground but still low? just about any wheel width will fit up inside the fenders, but turning them may be a chore unless you can lift to clear the tires.