Depsite this guild looking pretty dead, I'll ask here

What should I do with 50mil?
I want to make more money, obviously, but I alos want to make investments

Any of you guys able to help me out?
As far as vending goes, I do that from time to time when I get bored with my spare money, making anywhere from 5-10mil each session.
I just dont always have enough time to do that