Any business really.

It’s all about your effort and investment into the business itself.

What’s an easy way for someone to get started on a business that makes them $50k/month is a better question IMO.

For that answer, I’d say anything involving digital marketing combined with being a good salesman.

Creating a product in the digital marketing space allows you to quickly scale and being a good salesman will allow you to become profitable. This is a good recipe for getting a business to $50k/month (as long as you work hard and know how to utilize your earnings to leverage future success).

Start a business around something you’re passionate about and know well, create a product/service (coaching, training program, etc.), genuinely solve the problem that others may have when trying to figure out the nuances of the topic, and then go out and prospect and close clients/sales.

It’s then just a matter of rinse and repeat and scaling up by utilizing the wonderful power of the internet.