Kraus makes several Granite Composite sinks that are reasonably-priced and that owners like. Black Onyx sinks might look nice with Fantasy Brown countertops.

IMO always stainless as big as possiblr one bowl deep and no workstation . I think sinks are the workhorse of the kitchen and stainless can handle that job forever and never go out of style ot you start hating the color I sure would never do a black sink and I love black

No to the colored sink -- Fantasy Brown is gorgeous and a star player, keep the rest of it in the background. Go with stainless or white - they won't compete with anything.

I would select a cast iron sink with interior grids before a composite

Depending on which way your stone leans in color, you can select a taupe or gray composite sink, but always buy any kitchen sink with grids to protect the surface.

I had a black composite two houses ago and am going back to composite in my current new build- I loved it - I am also a wipe the sink clean every time I use it type of person so maintenance was easy.

Not a pro but...we just updated our kitchen and I selected a stainless steel sink. It's great and everything (Kraus) but - the water spots bug me every time I walk into the kitchen! Didn't think I was going to feel the need to wipe down my sink after every single splash of water :( Just something to consider.

One of the Blanco Silgranite sinks would look great. Depends on whether you want the sink to totally blend in or serve as a bit of color. I think stainless would be boring. We have a Precis 1 3/4 in Cafe Brown against African Ivory granite countertops. I think you can get color samples to check which one would look best against your Fantasy Brown. And grids are a must.

You do know that Fantasy Brown is a marble that will etch and not stay glossy?

Good information to know before selecting Fantasy Brown:

20 Things (everything) You Need to Know about Fantasy Brown Granite (actually Fantasy Brown marble)