I need to get me some better gut flora. I think I don't have enough or the ones I have are falling down on the job. I want to try to find capsules rather than liquid drinks so that the flora can survive my stomach and get into my intestines. My question is, what organisms should I look for on the label?

I don't care about brand names since when I go to the store there's hardly ever the same brands on the shelves. I just want to know what bacterias to look for.