First bike for a MSF graduate?

Hey everybody, I know this question has been asked a million times and it's an interesting question to ask total strangers, but I just figured I'd ask. I completed the MSF course with a perfect score on both my riding and writing test. I am in no way a perfect rider, I have many flaws, but I have a good groundwork to start on due to the amazing instructors at the MSF course. I also want to ride my bike on the interstate so that will also be a factor. Any suggestions are helpful. Thanks!