There are a couple mostly drama free kenyan sand boa groups. Positive pythons is pretty good too. Leachianus geckos groups are mostly drama free as well. I also go to pure locality boas and boa constrictor longicauda groups and haven't had any issues on either. I think the key is staying away from the ball python, leopard gecko, and beardie groups IMO.
If you are in GA, Georgia Royal Python Kingdom is a great local group.