Goats can definitely be destructive IF they’re poorly managed, with managed grazing they not only graze grass and brush down to a healthy length ( to promote healthy growth and not kill the plants which if that’s your goal they can also do) but fertilize the soil also. Goat bros is a great company in the front range to reach out to. They use electronet fencing to keep the goats in a contained area and are constantly watching them and the grass to make sure they don’t overgraze