Q.barrel cactus
I have two barrel cactus that have grown up and out of the ground. Can I dig around them and settle them back in the ground? They look funny and I want to dig under them so they can fall/settle back in the ground.
Yes, you should be able to do so.
I have listed a few links for you with care information and a great tutorial on transplanting a Barrel Cactus that should help you.
https://www.gardeningknowhow.com/ornamental/cacti-succulents/barrel-cactus/barrel-cactus-care.htm
https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1376.pdf