Have you ever tried San Pedro cactus? Mescaline is in my opinion the closest natural thing to MDMA. It has a very similar molecular structure and is the most unusual of the classical psychedelics in both chemistry and effects. It holds distinction as the only known phenethylamine to have a long history of ritualistic human use. I highly recommend it, as the psychedelic effects are very light, and more entactogenic than visual or mental.