I don't have any specific suggestions. However, greek yogurts are often more likely to be okay for yogurt starter but you would still need to contact the company to see what bacterial cultures are in it.
Yogurt starter must contain Streptococus thermophilus, Lactobacillus bulgaricus and may contain either Lactobacillus acidophilus and /or Lactobacillus casei. They may be labelled in abbreviated form as S..thermophilus, L. bulgaricus and may contain either L.acidophilus and /or L. casei.