Here are some pictures of trident maples
In general, there is movement/bend and or a branch within the first 2-4" from the soil line, which your options don't really have. If the roots are very interesting, I might consider the 3rd image that you posted because it has many back buds that you can potentially cut back to and/or use as sacrifice branches to develop some flare and contribute to overall nebari development. I would even consider moving towards a shohin design out of this material -- I attached 2 pictures of japanese maple shohin for inspiration, but you can do the same with trident. These were thick trunks that were chopped back and developed as chunky-based shohin. That said, your 4 options have very large leaves for a trident maple and might not be ideal for shohin or even larger designs for that matter. Based on the roots of the 4th image, I suspect these will all have very bad roots to work with and you would literally be better off starting with a cutting. Tridents grow quickly, and especially where you are in Georgia you will catch up to material like this and surpass it in just a few years.