I am offering to render - where to post?

Hi,

I invested in a data-mining rig which is working well. To my surprise, I can also use it to render.
It’s a rig with three GTX 1080 TI cards, and I can render with these three cards at the same time.
Since rendering is much more interesting than data-mining to me, I could render out around the same profit as I could make with data mining.

But I have no idea where I could post this on the forum, so I ended up here.
Any idea’s how I can present this, or post it at the right place?