any major dude
Bluelight Crew
Amber 2-3 dram vials seem to be the standard, and quite efficient/reliable. Freezer for tryptamines regardless of length of time of storage, for PEAs, doesn't matter as much. If i were planning on holding onto them for multiple years, i'd probably stick them in the freezer as well, though i'd imagine 2c-x at room temperature will be perfectly active long after we're all dead.
Hope that helps.
Hope that helps.