Locking because there is literally nothing new on this topic, just more of the same.
Forge for 1.13.X does not have a release yet and unscrupulous websites will say anything to get you to click their download button and/or look at their ads.
At this time (1/24/19) there are test builds for 1.13 available in a non-standard location on the files site , however these are TEST builds, though we invite you to report bugs you find in these builds please back up your worlds beforehand and try to do some research before reporting bugs, try to be informative about what you were doing when the bug occurred without telling a story, and PLEASE include logs, especially if it is a crash bug.