As adults we sometimes indulge vices for a myriad of reasons. Given the nature of the setting of Starfinder, I like to offer the player characters a wider selection of intoxicants than just "Dwarven space ale". Here are some of the things the PCs at my table have come up with.
Snails - These are mildly hallucinogenic, shifting the perception of color and smell slightly. A favorite among Vesk. (I'm not sure where we got this from but it's a running joke at our table that the party Vesk likes to "get slow")
Magnets - Only effective on Androids and SROs, think Bender with a refrigerator magnet on his head.
Throw some more ideas in here and i'll let you know if they make it to the table.