Consider planting a phytoanthelmintic plant such as the AU Grazer cultivar of Sericea lespedeza for them. Ours prefer it to alfalfa.
The honeysuckle is also a favorite. Plantain? Redbud? Pine? Mulberry? Raspberry? Pumpkin? Goji berry? Teff? Medicinal herbs, some grown away from goats, such as mullein, very useful to goats & humans, but has toxic seeds.
