For those of us in Canada, or who may be buying some common probiotic products:
Clinical Guide to Probiotic Products Available in Canada
http://www.probioticchart.ca/pbcadulthealth.html?utm_source=adult_ind&utm_medium=civ&utm_campaign=cdn_chartSome of these products are sold in the U.S. and possibly other countries as well.
Note that YMMV heavily. Just because something listed helps with say, "diarrhea", doesn't mean it will for you. It might just easily cause you loose stools. Best to research each strain individually.
Best wishes.