There isn't one that I'm aware of ... yet.

That said, the raw data is available through an S3-compatible service, here: https://osdc.rcc.uchicago.edu/noaa-goes16

With documentation about how to navigate and use the files here: http://edc.occ-data.org/goes16/getdata/

So it would be possible to script together something that cooks out a nice high-rez full disc image every 15 minutes.

For fun, here's one of the full disc frames we cropped in from:

https://d1ax1i5f2y3x71.cloudfront.net/items/0J2g1S1y2f2D1y0W...

Note that even though its 2712x2712 pixels, that's still way smaller than GOES16's potential resolution. The highest rez versions of this image that I've encountered go over 10,000 by 10,000...

What would be the latency of the images?

Depends the way you look at it. The final data is generally available within a couple minutes, but the data itself is not collected instantaneously. At least for the full-disk scenes, the collection takes 11 minutes so the top of the image is captured 11 minutes before the bottom.

I think that's the second link?