check these out
Most, if not all these compounds can be found on Wiki, so do some research like I did, and find the one that fits yours needs

already spend 2 hours researching all these for you. I'm beat man. caldoche1
The "perhaps" not-so obvious ones:
Pyrovalerone: the parent drug without the 3,4 Methylenedioxy structure attached.
Desoxypipradrol: probably your best bet.
4'-Methyl-α-pyrrolidinohexiophenone (MPHP): probably your next best bet.
Naphyrone/Naphthylpyrovalerone
Methylphenidate or Ethylphenydate: The former is 4x LESS potent that MDPV.
Methylnaphthidate: resembles methylphenidate structurally and is several times more potent. Might be a good candidate?
4-Methylaminorex or just Aminorex
5-(2-Aminopropyl)indole (5-IT)
Naphthylaminopropane/Naphthylisopropylamine/Alpha-methylnaphthylethylamine: substantially LESS potent, though.
α-Pyrrolidinopropiophenone (α-PPP)
4'-Methyl-α-pyrrolidinopropiophenone (MPPP) <--- not to be confused with MPPP+ which is a extremely toxic substance in found in botched fentanyl syntheses.
4'-Methoxy-α-pyrrolidinopropiophenone (MOPPP)
3',4'-Methylenedioxy-α-pyrrolidinopropiophenone (MDPPP)
3',4'-Methylenedioxy-α-pyrrolidinobutiophenone (MDPBP)
2β-Propanoyl-3β-(2-naphthyl)-tropane (WF-23): 100x+ more potent than cocaine.
Prolintane: sold in many European countries (not sure if Western or Eastern Europe) under the brand name "Catovit". Just :might" be the closest thing to MDPV based on it chemical structure. Who knows.
Synephrine/Oxedrine: used for weight loss. Then again so are amphetamines (to a less degree) and even methamphethamine (for the morbidly obese or those with SEVERE ADD/ADHD).
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The definitely OBVIOUS ones:
Cocaine
(Meth)Amphetamines
Methcathinone
Cathinone
Ethcathinone
Dimethylcathinone
Mephedrone
Methedrone
Epinephrine
Ephedrine/Pseudoephedrine
Propylhexadrine
Caffeine (lol)