Hensley Arrow or it's copy the Pro Pride. No sway, set it and forget it. The best, and most expensive ($3K+)hitches out there.
Add PullRite to the list. It is expensive, heavy, custom fit for your tow vehicle but it works. It actually functions much like a fifth wheel hitch for sway control and weight distribution only for a TT and is mounted under the truck bed. The hitch is around 400 pounds so it does affect the payload of the tow vehicle and sometimes requires minor rerouting of the exhaust. Unlike Hensley and ProPride and almost all other hitches, the PullRite provides about 70 degrees of movement that can help greatly in tight situations where turning is limited.