It depends on what your definition of "legal" is... considering there are literally hundreds of accessible analogs which remain uncontrolled/unscheduled in the US. Under the Analog Act, if a molecule is structurally similar to one which is schedule 1 or 2, it is illegal to manufacture, import, consume, or sell, if the intention is consumption. This is a bit of a misleading law, because, for example, ketamine is schedule 3, so most would assume that ketamine analogs do not apply, but in fact, ketamine itself is very structurally similar to many schedule 1 and 2 drugs. Basically any unscheduled or "under the radar" drug worth using can be considered an analog of a schedule 1 or 2 substance... So don't assume that you are free and clear just because you don't immediately see any connection to heavy drugs.
That being said, I have had many amazing experiences with a drug, 3-meo-pcp. It is, pretty obvious, a pcp derivative. I can most accurately describe its effect as ketamine with (easily) 3 times the duration, and no loss of motor control. It's not psychedelic. It's classic dissociation. You are in complete control of your actions, and unless you really push the dose, you will not reach an anesthetic or blackout state. Lethal overdose isn't really an issue with this drug. It's great IV, IM, insufflated, eaten, sublingual, etc... Any way you can get it in you. For those seeking tranquility, a bit of a narcotic relief, and great insight (thinking outside of your box), THIS IS THE DRUG.