Maximize your earnings by strategically running multiple biker businesses simultaneously.
Back in 2016, GTA Online received an update titled Bikers. Beyond fulfilling the community's longest standing request for the game by adding an entire update's worth of content centered on biker gangs, it also blessed us all with the Businesses, Online's most underrated way of making tons of cash with little effort.
As baffling as it may be, some players actually don't think much of businesses and their money making capabilities. Some players also happen to be very very wrong. When done right, running a business in GTA Online, or even several concurrently, is a great way to line your pockets with cold hard cash.
Here's the thing, getting businesses up and running takes some minor initial payment and investment before it actually starts functioning. Once your business is yours and ready to work, you'll have to keep it stocked with supplies.

There are two ways of going about these restocking missions: you can either buy supplies, thus decreasing your overall profit, or you can find and steal the supplies, not spending on operations and increasing your profit at the price of greater effort invested.
Regardless of which option you choose, in the end, a well-maintained business will earn you tons of cash with little effort needed from you, and once you're experienced with the system, you can start operating multiple businesses simultaneously for even more cash.
Get a Clubhouse
Before we even get to buying your business, you'll need to own a Clubhouse. Since these are essential for most content in Bikers, we'll go forward assuming you already have one. In any case, they're not particularly expensive, and you'll make a return on the investment in no time. Clubhouses come in two variations — Single Story and Double Story. Expect to pay between GTA$ 200,000 and 500,000 for the property.
The Open Road
However, let's start slow, shall we? Bikers uses it's own, less elegant version of Securoserve in the form of The Open Road, which is a play on the real world "Silk Road", an online black market. You can pick from five distinct business types: document forgery, counterfeit cash, weed farming, cooking meth and producing cocaine.
Each type has several actual businesses assigned to it, each in a different price range, allowing you to pick a location for your illegal enterprise, provided your budget allows it. The general rule is that the closer you are to the city, the more you'll be paying while roughing it out in the countryside far from civilization is the cheaper option.
Note: A glitch may occasionally affect businesses production. However, this is easily solved by quitting and then logging back into GTA Online..
Cocaine Lockup
All in all, the cocaine lockup is the most profitable of the businesses, with the meth lab coming in as second place. Really, the only difference between the different businesses is location, so you won't be at any significant disadvantage by buying the cheapest one. The cheapest cocaine lockup is located by the Alamo Sea, and will set you back $975,000. For reference, the most expensive one is in Morningwood and costs $1,852,500.
For a more detailed look at how the various businesses measure up to one another, check out this guide.