^As a general rule, we don't deal with the various "legal drugs" here, such as bath salts and legal blends, because no one knows what the hell is in them. The business itself is shady in the first place, and now that the FDA has used emergency scheduling to ban the previous designer drugs, it is even more hap hazardous to use these "drugs" on the basis that they MIGHT have a drug that KINDA resembles this other drug that is illegal but you just don't what to do for whatever reason.
As far as the chems themselves, I dunno, I like my drugs on the other side of the law, but I am sure a quick google search would give a list of similiar substances, though keep in mind that any good ones are already illegal(because of aforementioned FDA emergency scheduling), making this mostly a waste of time.
(seriously, just do real drugs instead of playing with god knows what!!!)