What about 2-methoxy-5-methyl-3,4-methylenedioxyamphetamine?
2-MeO-MDA, 5-MeO-MDA, 2-Me-MDA, 5-Me-MDA and 2,5-diMeO-MDA are all active, so im curious about other analogues exploring that direction, looks like theres lots of potential for novel compounds with empathogenic and hallucinogenic effects, which seems to be a popular effects profile. Also i found a french paper referring to MMDMA or 5-methoxy-3,4-methylenedioxy-N-methylamphetamine as being a "drug of abuse" which suggests its been found on the street somewhere although i've never heard of it anywhere else...
Or maybe 2,3-methylenedioxy-4-bromo-5-methoxyamphetamine...probably more of a pure hallucinogen but should still be active. Lots of promising substitution patterns that have never been tried.