I have been looking into what would be the most functional type of trailer and I have found that a goose neck works great with my Dually pickup truck. It has a built in goose neck hitch so I shopped around for a dump trailer that had a gooseneck on it and came across the one on Gooseneck Trailer
It fit perfectly with my truck and I am able to use it to haul all kinds of debris, sand, mulch and landscape materials easily. I would highly recommend that if you are looking for a goose neck trailer to give them a visit. They also have a lot of other types of trailers for many different uses.
Whether you are looking for something for around the yard or need a dump trailer for big jobs they seem to have it all.