Hi Steven, I suggest that you take a yDNA37 marker test. This will tell you about your paternal genetic forefathers, so if your father was a Hubbard, you may get matches that will narrow your search to a particular Hubbard line. Hubbard is a very old name in North America and there must be dozens of Hubbard lines.
If your mother was a Hubbard, the yDNA test will not help your Hubbard search.