Selling website that made $100, where to sell small side projects?

I created a platform where I connect clients to freelancers for a small fee, it has made $100 within the last week.

But since I have a main job I can't spend any more time on it. I am referring clients to freelancers and charge a 10% fee based on the project value. Once a client submits a new project an email is send out to the list of freelancers (currently 123) and the one who pays the 10% fee first via Paypal gets the client/project and can work with him on his own terms.

It is pretty much all automated from project submission to sending out the email and tracking of someone paid via Paypal to mark the project as closed. The only work is really getting new clients, or setting up ads. I did it manually without ads and haven't spend a penny so far on marketing.